planning aids industrial installations

Industrial installationsCable support systems and connection and fastening systems for industry and construction project infrastructure

Planning aids

Because, for us, product features such as installation speed, load capacity, func-tionality and availability are at the fore-front of every innovation, OBO systems are always reliable, safe and of the high-est quality. A high production depth and strong process automation also allow us to deal with the requirements of our cus-tomers in a targeted manner.

For the new edition of our catalogue, we have once again questioned our own processes. Is OBO a progressive, flexi-ble company? Are our structures effective and our processes efficient? Do we know our markets to a sufficient level? And pri-marily: Are we actually the best possible partner that you could imagine?

Towards the future

For us to be able to answer these ques-tions with a confident “Yes”, we have op-timised our structures once again, sharp-ened our profile and defined our services more clearly. This will allow us to react more quickly and reliably in future – both nationally and internationally – and also address the requirements of each individ-ual customer even better.

This optimisation is best reflected in the three new installation areas. Thanks to this considerably more streamlined struc-ture, we can emphasise the product ben-efits even further and make the appropri-ate areas of application more tangible.

Because it is better: OBO ‒ simply better

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OBO Product Worlds

Cable traysMesh cable traysCable laddersIndustrial ducts and trunkingSupport structuresElectrical installation pipesWiring ducts and trunkingPower supply unitsDistributorsJunction boxesConcealed and cavity wall installationsTerminalsCable glandsInstallation and fastening clipsAnchors and fastening systems

Industrial installations

Electrical installation ducts and trunkingDevice installation ducts and trunkingSkirting ducts and trunkingService polesUnderfloor applications in screedUnderfloor applications in concreteUnderfloor applications, on-floorService outlets for underfloor applicationsFloor sockets and floor boxesInstallation housings and supportsTabletop socketsSockets, switches, data and multimedia technology

Building installations

Surge protectionExplosion protectionLightning protectionEarthingEquipotential bondingInsulationCable bandages – prevention of the spread of fire Escape route installations – false ceiling mountingFire protection ducts – protection of escape routesFire protection ductsSystems for the maintenance of electrical functionality – cable-specific routing variantsSystems for the maintenance of electrical functionality – standard support structures and routing systemsSystems for the maintenance of electrical functionality – FireBox T series junction boxesAnchorings

Safety and protection installations

Cable routing and underfloor systems for administrative and functional buildings including architectural solutions

Lightning, surgeand fire protection systems

Cable support systems and connection and fasteningsystems for industry and construction project infrastructure

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Planning aidsIndustrial installationsCable support, connection and fastening systemsfor industry and construction project infrastructure

General planning aids 7

Cable trays 59

Mesh cable trays 85

Cable ladders 97

Industrial ducts and trunking 115

Support structures 133

Power supply units 161

Wiring ducts and trunking 175

Anchors and fastening systems 183

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High demands are placed on prod-ucts that are used in industrial envi-ronments. Electrical installations used in industrial settings are exposed to different weather and ambient condi-tions, need to withstand mechanical demands and loads and must also provide protection in the event of fire.

That is why the properties of the materials used are critical to the se-lection of installation systems for in-dustrial applications. Depending on where they are used, the corrosion resistance and load-bearing capacity of metals or the chemical and impact resistance of plastics are just some of the key selection criteria. In addition to the structural requirements, other points that can be decisive for the type and design of electrical instal-lation systems in industrial settings include the maintenance of electrical functionality in the event of fire, elec-tromagnetic compatibility or explo-sion protection.

This catalogue is intended to be both a source of information and a decision-making aid. It provides in-formation on materials, corrosion re-sistance, surface refinements, testing procedures and protection ratings, among other things. It also explains how cable volumes and loads are cal-culated and how these can be used to select the appropriate installation system. Maintaining the electrical function of safety-relevant systems in the event of fire is also addressed, as are electromagnetic compatibility and important certificates and test marks.

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General planning aids

Surfaces and corrosion 8

Properties of plastics 18

Protection ratings 22

Nominal values of electrical equipment 24

Zone division for explosive areas 25

Cable sizes 26

Basic values for calculation of the cable volume 27

Fastening clips 28

Selection of the correct cable support system 29

Cable load 32

Cable glands and DIN EN 50262 40

Information on cable fastening 41

Classification of installation pipes (according to DIN EN 61386-1) 42

Definition of electromagnetic compatibility (EMC) 44

Guaranteeing EMC 45

Magnetic shield insulation of cable support systems 46

Transfer impedance of cable support systems 47

Maintenance of the electrical supply 48

Standards, certifications and test marks 52

Every test mark at a glance 54

First-hand support and knowledge 55

OBO Construct – planning software and product configurators 56

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Metal: Corrosion and corrosion protection


Corrosion(from the Latin corrodere, “to decompose, erode, gnaw away”) in a technical context is a reaction between a material (generally a metal) and its sur-roundings leading to a measurable change in the material and potentially impairing the functionality of a component or system.

A large number of products used in industrial installa-tions are made of metal. Metals are much tougher than many other materials and are less sensitive to mechan-ical loading. The OBO metal products are made of alu-minium, die-cast zinc, stainless steel or steel.

Steel (St), the most commonly used material, is very strong and has good elasticity and chemical resistance. However, steel is susceptible to corrosion and must therefore be protected accordingly.

Stainless steels consist mainly of alloyed, very hard and rustproof steels. Stainless steels are divided into quality classes according to the percentage of alloys. These are indicated by the material number according to DIN EN 10027.

Aluminium (Al), as a light metal, has comparatively low strength but good electrical conductivity and high corro-sion resistance.

Die-cast zinc components (Zn) are very strong and hard. The manufacturing process enables the production of very precise components with good corrosion resistance.

Corrosion protection“Corrosion protection” means all steps taken to pre-vent corrosion damage to metallic components. It is impossible to prevent corrosion permanently, so corro-sion protection measures generally aim to reduce the speed of corrosion so that the component is not dam-aged by corrosion for the duration of its service life. The term “passive corrosion protection” refers to all measures designed to shield products from corrosive media. Coatings are one way of achieving passive corro-sion protection. At OBO, most steel products are protect-ed from corrosion by a layer of zinc. Zinc coatings can be applied to components using a variety of methods.

Zinc slat coveringZinc slat coverings are coatings applied in a non-electro-lytic manner. They offer a cathodic protection and thus have excellent corrosion protection, while at the same time, there is no risk of hydrogen-induced breakage. Due to these properties, this coating type is used for connection components with a high strength classifica-tion or structural parts with high tensile strength. The low layer thickness of the zinc slat covering allows a thin, homogeneous coating, which is particularly important for maintaining the accuracy of screw threads. This coating achieves a resistance of 480 hrs in the salt spray test for the connection elements.

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G

Galvanisation types


Electrogalvanisation – electrolytic galvanisation in ac-cordance with DIN EN 12329In electrogalvanisation, the component is coated by dip-ping it not in molten zinc, but in a zinc electrolyte, through which a direct electric current is passed.

Hot-dip galvanisation – hot galvanisation using the dipping method according to DIN EN ISO 1461Batch galvanisation is mainly used for galvanising pre-fabricated steel parts, by dipping them in molten zinc at a temperature of around 450 °C.

Strip galvanising – hot galvanised according to the strip-galvanising method in accordance with DIN EN 10346 Strip galvanisation or Sendzimir galvanisation is where a continuous ribbon of steel is galvanised in a continuous line.

Hot-dip coating – zinc-aluminium coating in accord-ance with DIN EN 10346In contrast to conventional coating systems, the mate-rial being galvanised in the double-dip process passes through two baths in succession: the first contains pure zinc, the second a zinc-aluminium alloy.

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Classification of corrosion resistanceAll the system components must show sufficient resist-ance against corrosion in agreement with the standard DIN EN 61537. The minimum zinc layer thicknesses are determined through a measurement. The grouping into the appropriate class is detailed in the table “Classifica-tion of corrosion resistance”. The table “Corrosion cate-gories according to DIN EN ISO 12944” shows the area of application and the zinc loss to be expected.

Classification of corrosion resistanceAll components, depending on the environment, must show sufficient resistance against corrosion in agree-ment with the standard DIN EN 61537.This is how corrosion categories are determined, e.g. with a salt spray test. In this procedure, components are sprayed with salt for a certain time period. The resulting level of red rust is the basis for allocation to a corrosion category, i.e. in which environment the component is re-sistant to corrosion.

Surface testing and corrosion categories

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Classification of corrosion resistance according to EN 61537Class Reference material and surface treatment0* None

1 Electroplated to a minimum thickness of 5 µm


3 Pre-galvanised to grade 275 to EN 10327 and EN 10326


5 Post-galvanised to a zinc mean coating thickness of (minimum) 45 µm according to ISO 1461

6 Post-galvanised to a zinc mean coating thickness (minimum) of 55 μm according to ISO 1461


8 Post-galvanised to a zinc mean coating thickness (minimum) of 85 μm according to ISO 1461 (usually high silicon steel)

9A Stainless steel manufactured to ASTM: A 240/A 240M – 95a designation S30400 or EN 10088 grade1-4301 without a post-treatment *

9B Stainless steel manufactured to ASTM: A 240/A 240M – 95a designation S31603 or EN 10088 grade1-4404 without a post-treatment *

9C Stainless steel manufactured to ASTM: A 240/A 240M – 95a designation S30400 or EN 10088 grade1-4301 with a post-treatment **

9D Stainless steel manufactured to ASTM: A 240/A 240M – 95a designation S31603 or EN 10088 grade1-4404 with a post-treatment **

* For materials which do not have a declared corrosion resistance classification** The end treatment process is used to improve the protection against crack corrosion and the contamination of other steels

Corrosion categories to DIN EN ISO 12944Cor-rosioncate-gory

Typical environment, inside Typical environment, outside Corrosionload

Averagezinc remo-val

C 1 Heated buildings with neutral atmospheres,e.g. offices, shops, schools, hotels - Insignifi-

cant<0.1µm/a

C 2 Unheated buildings in which condensation can occur,e.g. warehouse, sports halls

Atmosphere with low level of impurities.Often rural areas Low 0.1 to

0.7 µm/a

C 3Production facilities with a high level of humidity andsome air impurities, e.g. plants for food production,laundries, breweries, dairies

City and industrial atmosphere, consi-derable impurities through sulphurdioxide, coastal areas with low salt load

Medium 0.7 to2.1 µm/a

C 4 Chemical plants, swimming pools, boat sheds overseawater

Industrial areas and coastal areas withlow salt load Strong 2.1 to

4.2 µm/a

C 5-I Buildings or areas with almost constant condensationand with high levels of impurities

Industrial areas with high levels ofhumidity and aggressive atmosphere

Very strong(industry)

4.2 to8.4 µm/a

C 5-M

Buildings or areas with almost continuous condensa-tion and with high levels of impurities Coastal or offshore areas with salt load Very strong

(sea)> 4.2 to8.4 µm/a


Corrosivity categories to DIN EN ISO 12944

Classification of corrosion resistance (from the draft of DIN EN 61537)Classification of corrosion resistance according to EN 61537

Class Reference material and surface treatment0* None





5 Post-galvanised to a zinc mean coating thickness of (minimum) 45 µm according to ISO 1461



8 Post-galvanised to a zinc mean coating thickness (minimum) of 85 μm according to ISO 1461 (usually high silicon steel)

9A Stainless steel manufactured to ASTM: A 240/A 240M – 95a designation S30400 or EN 10088 grade1-4301 without a post-treatment *

9B Stainless steel manufactured to ASTM: A 240/A 240M – 95a designation S31603 or EN 10088 grade1-4404 without a post-treatment *

9C Stainless steel manufactured to ASTM: A 240/A 240M – 95a designation S30400 or EN 10088 grade1-4301 with a post-treatment **

9D Stainless steel manufactured to ASTM: A 240/A 240M – 95a designation S31603 or EN 10088 grade1-4404 with a post-treatment **

* For materials which do not have a declared corrosion resistance classification** The end treatment process is used to improve the protection against crack corrosion and the contamination of other steels

Corrosion categories to DIN EN ISO 12944Cor-rosioncate-gory

Typical environment, inside Typical environment, outside Corrosionload

Averagezinc remo-val

C 1 Heated buildings with neutral atmospheres,e.g. offices, shops, schools, hotels - Insignifi-

cant<0.1µm/a

C 2 Unheated buildings in which condensation can occur,e.g. warehouse, sports halls

Atmosphere with low level of impurities.Often rural areas Low 0.1 to

0.7 µm/a

C 3Production facilities with a high level of humidity andsome air impurities, e.g. plants for food production,laundries, breweries, dairies

City and industrial atmosphere, consi-derable impurities through sulphurdioxide, coastal areas with low salt load

Medium 0.7 to2.1 µm/a

C 4 Chemical plants, swimming pools, boat sheds overseawater

Industrial areas and coastal areas withlow salt load Strong 2.1 to

4.2 µm/a

C 5-I Buildings or areas with almost constant condensationand with high levels of impurities

Industrial areas with high levels ofhumidity and aggressive atmosphere

Very strong(industry)

4.2 to8.4 µm/a

C 5-M

Buildings or areas with almost continuous condensa-tion and with high levels of impurities Coastal or offshore areas with salt load Very strong

(sea)> 4.2 to8.4 µm/a

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Contact corrosion


If two different metals are conductively connected with each other, contact corrosion can occur. This poses a considerable risk to the load capacity and lifespan of the components used.

The level of contact corrosion is primarily determined by the level of the potential difference between the contact partners. Contact corrosion occurs at potential differenc-es of 100 mV or greater and the anodic (electrically neg-ative) partner is at risk of corrosion. Therefore, strongly non-precious metals should never be brought into con-tact with precious metals.

Additional contact corrosion criteria:• Level of electrical resistance between the contact part-

ners. The higher the resistance, the lower the contact corrosion. Positive on Al and Ti.

• Occurrence of an electrolyte. An electrolyte, such as perspiration or condensation, attacks the protective lay-ers, increasing conductivity. Dirt increases this effect through released ions.

• Length of the impact of the electrolyte. The longer the electrolyte is active, the greater the corrosion will be.

• The surface ratios of the contact partners influence the current density. The best thing to have is a small surface ratio of the “precious” to the “less precious” contact partner.

• Different environments or atmospheres can increase or influence the risk of contact corrosion to varying de-grees.

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Installation locations


Whether indoors or outdoors, in aggressive atmospheres or under special hygienic conditions, OBO can offer the perfect surface and materials for your installation, no matter what the requirements may be.

OBO metal products are machined from high-quality sheet steel or steel wire and are available with various surfaces.

Different hardening and coating methods ensure tai-lor-made corrosion protection, specially tailored to the appropriate application:

Steel Painted/powder-coated

Steel Strip galvanised (approx. 20 μm) DIN EN 10327

Steel Electrogalvanised/electrolytically galvanised (ap-prox. 2.5–10 μm), DIN EN 12329

Steel Hot galvanised (approx. 40–60 μm)DIN EN ISO 1461

Steel Zinc-aluminium coating (approx. 23 μm)DIN EN 10346

Stainless steel A2

Stainless steel A4

Stainless steel A2

Stainless steel A4

Indoors

Outdoors

Especially corrosive areas

Application Material Surface protection

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Contact corrosion in different environments


Land climate

No risk of contact corrosion

Low risk of contact corrosion

Risk in case of small area ratio (area of non-precious metal/area of precious metal)

High risk of contact corrosion

Stainless steel

Aluminium

Copper

Brass

Die-cast zinc

Component (large)

Component (small)

Steel, galvanised

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Industrial atmosphere





Steel, galvanised

Stainless steel

Aluminium

Copper

Brass

Die-cast zinc

Component (large)

Component (small)

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Maritime climate





Steel, galvanised

Stainless steel

Aluminium

Copper

Brass

Die-cast zinc

Component (large)

Component (small)

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Applications with specific optical requirements or spe-cial environmental conditionsColour-coated products are becoming ever more popu-lar. The coating may be required for optical reasons or for reasons of corrosion protection.

Colour coatings for reasons of corrosion protection• Products in FT (hot-dip galvanised version)• All RAL colours available• Coating of the visible surfaces or the complete system• Suitable for the colour of the structure when routed

openly• Separation of different voltages/functions (e.g. blue

230/400 V power supply; red weak current such as telephone cables and IT)

Colour-coated systems are not specifically indicated in this Industrial installation product catalogue. You can ob-tain details of these systems by contacting our telephone hotline on +49 (0)2371 7899-2000.

Surfaces for special visual requirements or specific environmental con-ditions


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Plastic: Materials and properties

Essentially plastics be of one of three types: thermoplas-tics, elastomers and Duroplast.

ThermoplasticsAlso known as plastomers, these are plastics that can be shaped within a specific temperature range. This process is reversible, in other words, thermoplastics can theoreti-cally be cooled and then melted down again any number of times. Another unique advantage of thermoplastics is that they can be welded.

ElastomersElastomers have a fixed shape, but can be elastically deformed. They can elastically deform under tensile and compressive stresses, but afterwards will return to their original shape. Elastomers are used for producing seals and membrane entries.

DuroplasticsDuroplastics or thermosetting polymers/plastics, are plastics that can no longer be deformed following curing. Duroplasts produce hard, glass-like (brittle) polymeric materials with a high thermo-mechanical strength.

PropertiesThe area of application for which plastic OBO products are suitable depends mainly on the properties of the ma-terial being used. The most important material properties are:

• Temperature resistance• Risk of stress cracks• Chemical resistance• Halogen freedom• UV resistance• Flame resistance

Temperature ranges of plastics

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Risk of stress cracks

Medium

Risk of stress cracks

Danger of tension cracks: Virtuallynegligible Low High Very high

Chemical resistance

Medium

Petroleum

Fat

Benzole

Solvents

Formic acid

Citric acid

Lactic acid

Hydrochoric acid

Sulphanic acid

Acetone

Petrol

Butyric acid

Chlorine

Acetic acid

Nitric acid

Ester

Alcohol

Mild alkalis

Mild acids

Ether

Water

Strong acids

Strong alkalis

Hydrofluoric acid

Paraffin hydrocarbon

Haloalkanes

Ketones

Aldehyde

Organid acids

Seawater

Diesel fuel

Ammoniac

Resistance: Resistant Limited resistance Not resistant

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Plastic: material properties

Halogen freedomEstimates suggest that around 95% of fire victims die not due to the immediate effects of the fire, but of poi-soning from the smoke. In addition, the corrosive fire gases created during fires cause immense damage to property and can permanently damage the structure of a building. Therefore, halogen-free installation systems should or must always be used in public areas (emer-gency routes, lifts, etc.). The chemical composition of these halogen-free systems is designed in such a way that, in the case of fire, they produce less hazardous

(toxic/corrosive) gases, which could combine with extin-guishing agents to form hydrochloric acid. In the sense of the standard DIN VDE 0472, this means that materials are considered halogen-free when “the proportions of the halogens chlorine, bromine and iodine are ≤ 0.2% for chlorine and ≤ 0.1% for fluorine”. OBO Bettermann offers a wide range of halogen-free products that reduce the risk of harm to people and prop-erty to a minimum in case of fire.

UV resistanceOutdoor installations should always be viewed particular-ly critically with regard to the mounting locations and the selection of the installation materials. UV radiation is damaging to many plastics, causing them to turn yellow and/or brittle or lose their elasticity. Howev-er, plastics can be protected against UV damage through the addition of UV stabilisers. Products made from UV-resistant materials are specially marked. In general,

besides UV radiation, installations outdoors must also take other environmental influences into account. Factors such as maximum temperatures, regularity of (extreme) temperature changes, humidity and the location of use/mounting (housing, industry, town, region, continent) all have an important role to play here.

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Flame-resistance/fire-resistanceMaterials are described as flame-resistant if they prevent the spread of fire or are sufficiently fire-resistant. Ac-cording to DIN EN 60695-2-11 (VDE 0471 Part 2‒11), electrical connection materials must be subjected to a glow wire test, in order to evaluate the fire risk of the end product. When the glow wire test is being carried out, a

glowing wire (for temperature see table below) is inserted into the component to be tested for a period of 30 sec-onds and then removed. After 30 seconds at the latest, the object, if it has caught light, must have extinguished again, in order to specify the flame resistance.

Types of installation systemsTypes of installation systemsTypes of samplesTest temperatures in °C Surface-mounted Concealed Flush-mounted Cavity wall/

furnitureConcretestructure Installation duct

Connection sockets 650 650 750 850 650 750

Accessory sockets and device connection sockets 750 650 - 850 650 750

Ceiling lights, connection sockets 750 650 - 850 650 750

Wall light connection sockets 750 650 - 850 650 750

Device connection sockets 750 650 - 850 650 750

Connection sleeves 750 - - - - 750

Insulation sections, which support active parts 960 - - - - -

Cover for installation sockets 750 - - - - -

Cover for installation sockets 750 - - - - -

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Protection ratings

IP protection ratingThe IP protection rating specifies how far a component is protected against contact and foreign bodies and the ingress of water. The IP protection ratings are controlled by the standard DIN EN 60529 (VDE 0470 Part 1). The IP is always made up of two digits.

The first digit designates the contact and foreign body protection. On the one hand, it specifies how far a hous-ing prevents access to dangerous parts, by preventing or limiting the ingress of body parts or objects held by a person. On the other hand, it specifies how far the hous-ing protects the installed resources against the ingress of solid foreign bodies.

Protection ratingProtection ratingFirst code digit ...against access to the dangerous parts ...against solid foreign bodies0 Protected against access to dangerous parts with the back of the hand Not protected

1 Protected against access to dangerous parts with a finger Protected against solid foreign bodiesof 50 mm diameter and larger

2 Protected against access to dangerous parts with a tool Protected against solid foreign bodiesof 12.5 mm diameter and larger

3 Protected against access to dangerous parts with a wire Protected against solid foreign bodiesof 2.5 mm diameter and larger

4 Protected against access to dangerous parts with a wire Protected against solid foreign bodiesof 1.0 mm diameter and larger

5 Protected against access to dangerous parts with a wire Dust-protected

6 Protected against access to dangerous parts with a wire Dust-proof

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The second digit specifies the protection against water. It specifies how far the resource is protected against in-coming water and the resulting damage.

Protection rating against the entry of water with a damaging impact

IK codeThe IK code to DIN EN 50102 indicates the protection rating of housings against external mechanical loads. It is made up of the code letters IK and a two-digit number from 00 to 10. Each group of numbers stands for a load energy value in Joules (J). The IK code always applies to

the complete housing, which guarantees the protection of resources against the damaging effects of mechanical loads. The housings are tested by knocking them with different testing hammers.

Protection rating against the entry of water with a damaging impactSecondcodedigit

Short description Definition

0 Not protected -

1 Protected against water droplets Droplets falling vertically may have no damaging impact.

2Protected against water dropletswhen the housing is tilted to up to15°

Droplets falling vertically may not have a damaging impact, if the housing is tilted toangle of 15° on either side of the vertical.

3 Protected against spray water Water being sprayed at an angle of 60° on both sides of the vertical may not haveany damaging impact.

4 Protected against spray water Water spraying the housing from any direction may not have any damaging impact.

5 Protected against water jets Jets of water pointing at the housing from any direction may not have any dama-ging impact.

6 Protected against strong water jets Strong jets of water pointing at the housing from any direction may not have anydamaging impact.

7Protected against the effects ofbeing temporarily immersed inwater

If the housing is sometimes underwater under standard pressure and time condi-tions, then water may not enter in such volumes as would have a damaging impact.

8Protected against the effects ofbeing continuously immersed inwater

If the housing is continuously underwater, then water may not enter in such volu-mes as would have a damaging impact and this shall be subject to conditions to beagreed between the manufacturer and the user. However, the conditions are moredifficult to fulfil than for number 7.

IK code 00 01 02 03 04 05 06 07 08 09 10Stress energy value [J] - 0.15 0.20 0.35 0.50 0.70 1 2 5 10 20

Protection rating against the entry of water with a damaging impactSecondcodedigit

Short description Definition

0 Not protected -

1 Protected against water droplets Droplets falling vertically may have no damaging impact.

2Protected against water dropletswhen the housing is tilted to up to15°

Droplets falling vertically may not have a damaging impact, if the housing is tilted toangle of 15° on either side of the vertical.

3 Protected against spray water Water being sprayed at an angle of 60° on both sides of the vertical may not haveany damaging impact.

4 Protected against spray water Water spraying the housing from any direction may not have any damaging impact.

5 Protected against water jets Jets of water pointing at the housing from any direction may not have any dama-ging impact.

6 Protected against strong water jets Strong jets of water pointing at the housing from any direction may not have anydamaging impact.

7Protected against the effects ofbeing temporarily immersed inwater

If the housing is sometimes underwater under standard pressure and time condi-tions, then water may not enter in such volumes as would have a damaging impact.

8Protected against the effects ofbeing continuously immersed inwater

If the housing is continuously underwater, then water may not enter in such volu-mes as would have a damaging impact and this shall be subject to conditions to beagreed between the manufacturer and the user. However, the conditions are moredifficult to fulfil than for number 7.

IK code 00 01 02 03 04 05 06 07 08 09 10Stress energy value [J] - 0.15 0.20 0.35 0.50 0.70 1 2 5 10 20

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Nominal values of electrical equipment

When using junction boxes, connection sockets and con-nection terminals, the resources are assigned nominal values. In the designation, a distinction is made between the maximum approved voltage (nominal voltage), the

maximum approved current (nominal current) and the maximum approved cross-section (nominal cross-section of the cables to be connected).

Nominal cross-sectionLargest tested-approved cross-sec-tion of the cables to be connected.

Nominal currentThe nominal current is the highest permissible operating current that can be continuously passed through connections (e.g. terminals) marked with that value.

Nominal voltageGreatest approved voltage at the con-nection point.

In addition to the nominal values, the number of entries for junction boxes and the number of poles of clamp con-nectors are also possible labels.

Number of polesNumber of connection points of the clamp connector.

Number of entriesNumber of entries in an electrical connection box or connection socket.

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Zone division for explosive areas


Products used in potentially explosive areas must comply with the ATEX directives. The ATEX workplace directive 1999/92/EC sets out the minimum requirements for im-proving the safety and health protection of workers at risk from potentially explosive atmospheres. The direc-

tive divides areas with dangerous, potentially explosive atmospheres into zones. Ex-tested products may be used in the respective zones in accordance with their approval.

Zone allocation of device group II (applied)Zone allocation of device group II (applied)Gas DustExplosive gas atmosphere, zone division to DIN EN 60079-10 Explosive dust-air mixtures, zone division to DIN EN 61214-10Zone 0 Zone 20

An area in which it can be expected that, under normal condi-tions, an explosive atmosphere of gas occurs continuously orfor long periods of time.

An area in which it can be expected that, under normal conditions,an explosive atmosphere of dust/air occurs continuously or forlong periods of time.

Zone 1 Zone 21

An area in which it can be expected that, under normal condi-tions, an explosive atmosphere of gas occasionally occurs.

An area in which it can be expected that, under normal conditions,an explosive atmosphere of dust/air occasionally occurs.

Zone 2 Zone 22

Area, in which it can be expected that, under normal condi-tions, an explosive atmosphere of gas seldom or only brieflyoccurs.

Area, in which it can be expected that, under normal conditions,an explosive atmosphere of dust/air seldom or only briefly occurs.

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Circular area (1) and space required (2)

Calculation with the formula (2r)² The circular area of the cable cross-section says little about the actual space required by a cable. Calculate: (2r)². This value reflects the realistic space requirements, including the compartments.

Cable sizes


To save you work, we have listed the diameter and usable cross-section of the most important cable types below. Important: These values are average values, which may vary from manufacturer to manufacturer. Please refer to the manu-facturer‘s specifications for the exact values.

The term “cable” means a jacketed electrical cable for the transmission of electrical energy and data. Cables are given according to their nominal cross-section. The external diameter and usable cross-section depend on their nominal cross-section and the number of individual wires contained in the cable. When fastening clips or ca-

ble support systems are used, it is important to know the actual space requirements of the individual cables. It is not sufficient to take only the diameter as a basis for the calculation of the cable volume.

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Basic values for calculation of the cable volume


Insulated power cables

Type Diametermm

Usable cross-section cm²

1 x 4 6.5 0.42

1 x 6 7 0.49

1 x 10 8 0.64

1 x 16 9.5 0.9

1 x 25 12.5 1.56

3 x 1.5 8.5 0.72

3 x 2.5 9.5 0.9

3 x 4 11 1.21

4 x 1.5 9 0.81

4 x 2.5 10.5 1.1

4 x 4 12.5 1.56

4 x 6 13.5 1.82

4 x 10 16.5 2.72

4 x 16 19 3.61

4 x 25 23.5 5.52

4 x 35 26 6.76

5 x 1.5 9.5 0.9

5 x 2.5 11 1.21

5 x 4 13.5 1.82

5 x 6 14.5 2.1

5 x 10 18 3.24

5 x 16 21.5 4.62

5 x 25 26 6.76

7 x 1.5 10.5 1.1

7 x 2.5 13 1.69


Type Diametermm

Usablecross-section cm²

1 x 10 10.5 1.1

1 x 16 11.5 1.32

1 x 25 12.5 1.56

1 x 35 13.5 1.82

1 x 50 15.5 2.4

1 x 70 16.5 2.72

1 x 95 18.5 3.42

1 x 120 20.5 4.2

1 x 150 22.5 5.06

1 x 185 25 6.25

1 x 240 28 7.84

1 x 300 30 9

3 x 1.5 11.5 1.32

3 x 2.5 12.5 1.56

3 x 10 17.5 3.06

3 x 16 19.5 3.8

3 x 50 26 6.76

3 x 70 30 9

3 x 120 36 12.96

4 x 1.5 12.5 1.56

4 x 2.5 13.5 1.82

4 x 6 16.5 2.72

4 x 10 18.5 3.42

4 x 16 21.5 4.62

4 x 25 25.5 6.5

4 x 35 28 7.84

4 x 50 30 9

4 x 70 34 11.56

4 x 95 39 15.21

4 x 120 42 17.64

4 x 150 47 22

4 x 185 52 27

4 x 240 58 33.6

5 x 1.5 13.5 1.82

5 x 2.5 14.5 2.1

5 x 6 18.5 3.42

5 x 10 20.5 4.2

5 x 16 22.5 5.06

5 x 25 27.5 7.56

5 x 35 34 11.56

5 x 50 40 16

Telecommunications cables

Type Diametermm

Usablecross-section cm²

2 x 2 x 0.6 5 0.25

4 x 2 x 0.6 5.5 0.3

6 x 2 x 0.6 6.5 0.42

10 x 2 x 0.6 7.5 0.56

20 x 2 x 0.6 9 0.81

40 x 2 x 0.6 11 1.12

60 x 2 x 0.6 13 1.69

100 x 2 x 0.6 17 2.89

200 x 2 x 0.6 23 5.29

2 x 2 x 0.8 6 0.36

4 x 2 x 0.8 7 0.49

6 x 2 x 0.8 8.5 0.72

10 x 2 x 0.8 9.5 0.9

20 x 2 x 0.8 13 1.69

40 x 2 x 0.8 16.5 2.72

60 x 2 x 0.8 20 4

100 x 2 x 0.8 25.5 6.5

200 x 2 x 0.8 32 10.24

IT cables type Cat...

Type Diametermm


Cat. 5 8 0.64

Cat. 6 8 0.64

Coax cable (Standard)

Type Diametermm


SAT/BKcable 6.8 0.48

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Fastening clips


External diameter in mm Metric size PG size

Up to 12 M12 PG 7

Up to 16 M16 PG 9/PG 11

Up to 20 M20 PG 13.5/ PG 16

Up to 25 M25 PG 21

Up to 32 M32 PG 21

Up to 40 M40 PG 36

Up to 50 M50 PG 42/PG 48

Up to 63 M63 -

Overview of external diameters, metric and PG sizes

Fastening clips are given with their maximum span dis-tance as a nominal size in mm. This makes it easy to determine the appropriate clip for the planned cable vol-ume. If the necessary clamping range is between two nominal sizes, e.g. 16 mm, we recommend using the smaller nominal size.

If cables are not fastened directly in the clip, but routed through an installation pipe for example, the relationship between the external diameter and metric or PG sizes must be observed when selecting the correct fastening clip. You will find more information on this in the table below.

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Selection of the correct cable support system


Cable typesNot all cables are the same. To select the perfect cable support system, you need to know which type of cables are to be laid: Are they sensitive data cables, which must be laid at a certain distance from each other on account of the necessary shielding? Or power cables, for which a not inconsiderable heat build-up must be taken? For all these applications OBO can offer tailor-made system solutions.

When selecting the right cable support system, the ca-ble volume is not the only decisive factor. The type of cabling, method of laying and cable weight all play an important role. The most important aspects are explained on the following pages.

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System types

Universal cable traysAreas of application: from low-voltage cabling to power supply.

Wide span cable trays and ladders for large support distancesAreas of application: for installations in which the support distances are more than three metres, on account of the construction conditions.

Mesh cable trays for the installation of light cablesAreas of application: IT cabling, tele-phone cabling and control cables. Also suitable for use in false ceilings and cavity floors.

Modular system for special tasksThe product range that knows no bounds. The range of individually combinable products is particular suited to complex installation tasks.

Cable ladders for power cables with a large cross-sectionAreas of application: (power) cables with large cross-sections. These can be fastened to the rungs using U clamps. The large load capacity and good ventilation ensure perfect cable routing.

AZ small duct for universal useAreas of application: from luminaire support systems to low-voltage ca-bling and power supply.


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Finding the appropriate system for the planned cable volume


Cable heightThe cable height may not exceed the edge height of the cable tray.

Separation of system levelsWhen selecting the volume, pay at-tention to the different cables. To separate different voltage levels, you must take the required spacings into account.

Volume reserveWhen selecting the system, a vol-ume reserve of at least 30% should be planned for possible later instal-lations.

Same usable cross-section, differ-ent requirementsThere are different requirements for laying data and power cables. Even if the usable cross-section or cable volume is the same, data cables tend to have a narrow, high tray, whereas power cables require a wide, flat ver-sion, to avoid heat build-up.

BranchesWhen dimensioning branches, the bending radii of the cables must be taken into account.

ExamplesFlat, wide variant:• E.g. for power cables• Cable tray width: 300 mm• Side height: 35 mm• Usable cross-section: 103 cm2 e.g.

for data cables• Cable tray width: 100 mm• Side height: 110 mm• Usable cross-section: 108 cm2

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Calculating the cable load


100 mm = 15 kg/m

100 mm = 15 kg/m

100 mm = 15 kg/m

100 mm = 15 kg/m

100 mm = 15 kg/m

100 mm = 15 kg/m

Of equal significance for the selection of the most suita-ble cable support system is the load capacity. This must be matched with the expected cable weight (including the reserve for later installation). There are three variants for determining the cable weight:

Variant 1: Orientation to experience valuesThe average load capacity of a cable tray can be calcu-lated roughly using experience values. For a system with a rail height of 60 mm, a value of 15 kg per 100 mm width is valid for each metre of cable tray or cable ladder. However, more accurate than orientation to experience values is to calculate the cable load using the formula from DIN VDE 0639 Part 1 (Variant 2) or the manufac-turer‘s specifications (Variant 3). The graphics show the load capacities, based on experience values, of cable trays with a rail height of 60 mm, relative to cable tray widths of 100 to 600 mm.

Variant 2: Calculation formula according to VDE 0639 T1DIN VDE 0639 Part 1 (cable support systems) offers a formula for calculating the maximum permitted cable load.In the example calculation below, the maximum approved cable load for a cable tray is worked out using the dimen-sion 60 mm x 300 mm and a usable cross-section of 178 cm².

Variant 3: Exact calculation according to manufactur-er‘s specificationsMost cable manufacturers offer a very accurate meth-od of calculating cable weights, and appropriate lists or tables can be obtained from them. Important: The table below only provides a rough overview. They are average values, which may vary from manufacturer to manufactur-er. Please refer to the manufacturer‘s specifications for the exact values.

0.028 N Cable load (F) = ――――― x Usable cross-section

m x mm²

0.028 N 1. Cable load (F) = ――――― x 17,800 mm² = 500 N/m

m x mm²

2. Conversion from Newtons (N) to kilogrammes (kg) 10 N ~ 1 kg – in our example, this means: 500 N/m = 50 kg/m

3. Maximum occurring load = 50 kg/m

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Actual cable load of different cable types



Type Cable loadkg/m

1 x 4 0.08

1 x 6 0.105

1 x 10 0.155

1 x 16 0.23

1 x 25 0.33

3 x 1.5 0.135

3 x 2.5 0.19

3 x 4 0.265

4 x 1.5 0.16

4 x 2.5 0.23

4 x 4 0.33

4 x 6 0.46

4 x 10 0.69

4 x 16 1.09

4 x 25 1.64

4 x 35 2.09

5 x 1.5 0.19

5 x 2.5 0.27

5 x 4 0.41

5 x 6 0.54

5 x 10 0.85

5 x 16 1.35

5 x 25 1.99

7 x 1.5 0.235

7 x 2.5 0.35


Type Cable loadkg/m

1 x 10 0.18

1 x 16 0.24

1 x 25 0.35

1 x 35 0.46

1 x 50 0.6

1 x 70 0.8

1 x 95 1.1

1 x 120 1.35

1 x 150 1.65

1 x 185 2

1 x 240 2.6

1 x 300 3.2

3 x 1.5 0.19

3 x 2.5 0.24

3 x 10 0.58

3 x 16 0.81

3 x 50 1.8

3 x 70 2.4

3 x 120 4

4 x 1.5 0.22

4 x 2.5 0.29

4 x 6 0.4

4 x 16 1.05

4 x 25 1.6

4 x 35 1.75

4 x 50 2.3

4 x 70 3.1

4 x 95 4.2

4 x 120 5.2

4 x 150 6.4

4 x 185 8.05

4 x 240 11

5 x 1.5 0.27

5 x 2.5 0.35

5 x 6 0.61

5 x 10 0.88

5 x 16 1.25

5 x 25 1.95

5 x 35 2.4

5 x 50 3.5

Telecommunications cables

Type Cable loadkg/m

2 x 2 x 0.6 0.03

4 x 2 x 0.6 0.035

6 x 2 x 0.6 0.05

10 x 2 x 0.6 0.065

20 x 2 x 0.6 0.11

40 x 2 x 0.6 0.2

60 x 2 x 0.6 0.275

100 x 2 x 0.6 0.445

200 x 2 x 0.6 0.87

2 x 2 x 0.8 0.04

4 x 2 x 0.8 0.055

6 x 2 x 0.8 0.08

10 x 2 x 0.8 0.115

20 x 2 x 0.8 0.205

40 x 2 x 0.8 0.38

60 x 2 x 0.8 0.54

100 x 2 x 0.8 0.875

200 x 2 x 0.8 1.79

Coax cable (standard)

Type Cable loadkg/m

SAT/BK cable 0.06

IT cables type Cat...

Type Cable loadkg/m

Cat. 5 0.06

Cat. 6 0.06

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Finding the appropriate system for the cable load


Explanation of the pictograms: 1 = Load in kN without human weight, 2 = Support width in m, 3 = Strut bend in mm

Load tests for cable support systemsAll OBO products and systems are subjected to practical load testing. The basic principles for the tests of OBO cable support systems is DIN EN 61537 and DIN VDE 0639. After the load test, the maximum load capacity can be determined for each component, depending on the support distances and specific article parameters, such as component dimensions. This is all shown in a chart, included with each component.

You can find additional information on the load tests for cable trays, brackets and suspended supports on the following pages. The values given do not take resistance against environmental forces such as snow, wind and other outside influences into account.

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Load diagram legend 1 = Load in kN/m without human weight2 = Support width in m3 = Strut bending in mm 4 = Schematic diagram of the support widths for the testing process-- = Approved load depending on support width for the different tray widths-- = Rail bend depending on support width

Information 1: The testing processThe basic principles of the tests of OBO cable support systems is VDE 0639 Part 1 and DIN EN 61537. The purpose of the tests is to determine the maximum load capacities for each component, depending on pa-rameters such as component width, support spacing, etc. and to present this in a diagram to be included with each component. The area highlight-ed in blue in the above example sche-matises the experiment set-up with a variable support spacing (L) in the central area and a factor of 0.8 x L at the front and rear ends of the cable tray.

Information 2: Load curves for se-lected cable tray or cable ladder widthsThe load capacity of the cable trays according to the support width can be read off in the diagram using the load curves – this is an example for a cable tray for the tray widths 100 to 600 mm. It may occur that, in the load curves, width differences must be made, allowing multiple curves to be visible simultaneously in the dia-gram. A key factor for the load capac-ity of the cable trays is, beside the support spacing and side height, the material thickness, which varies ac-cording to type.

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Information 3: Possible support spacingsThe theoretically possible support spacings for the cable tray can be read off on the axis at the foot of the table. Using the load curves, it is easy to read off to what extent the load capacity of the system falls as the support spacing grows. On all OBO cable support systems (with the ex-ception of the wide span trays), we recommend not exceeding a support spacing of 1.5 m if possible.

Information 4: Ratio: load/spanWhich load is possible at which sup-port spacing? With the diagram, you can find the appropriate information at a glance. In our example (with the blue background) a span of 2.25 m for the cable tray produces a maxi-mum load capacity of 0.75 kN for each running metre of cable tray. Please note that, in this example, the volume of the cable tray may exceed the permitted load. Therefore, if at all possible, do not exceed the support spacing of 1.5 m, as recommended by OBO.

Information 5: W = Rail bendingTo what extent does the load on a ca-ble tray cause the rail to bend? This information is supplied by the blue curve (w) in millimetres (orientation values on the axis on the right-hand side of the diagram).The course of the blue curve clearly shows how quickly the cable tray will sag as the support spacing increas-es. In our example, the bend at a support spacing of 2.25 m is shown, here approximately 12 mm.


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Load diagram legend 1 = Bend in mm at the bracket tip2 = Load in kN/m without human weight-- = Load curves for the various bracket lengths

Finding the appropriate bracket for the cable load

Key component of the OBO cable support systems are the mounting components, in particular the brackets and suspended supports. They connect the cable trays and ladders to the wall and to the ceiling, and are thus an im-portant construction element of the overall system. When calculating the load capacity of a cable support system, the brackets and suspended supports must not be for-gotten. The test diagram is also useful in selecting the right products.

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Information 1: Recommended maxi-mum load of the bracketsThe bracket is the part of the installa-tion system upon which the cable tray or mesh cable tray is located. It is ei-ther directly connected to the wall or is connected to the ceiling using sup-ports. The grey bar on the right edge of the diagram provides information on the maximum load capacity of the bracket.

Information 4: Bending of the brack-et tip at maximum loadThe bending factor of the bracket at maximum load can also be seen in the diagram. In our example (shown in orange), the bend value for a 610 mm-wide bracket at a maximum load of approx. 3.0 kN is approximately 4.5 mm. To minimise the bend, the centre of gravity of the cable load should be as close as possible to the wall or the support fastening.

Information 2: Load curves for all bracket widthsThe bending of the bracket is depend-ent on its width, which, in our exam-ple, can range from 110 mm to 610 mm. The load curves are assigned to the appropriate bracket type.

Information 3: Bending of the brack-et tip at a specific loadThe load curve in the diagram pro-vides information on the bending of the boom tip at a specific load. In our example (dotted orange line), a 610 mm-wide bracket with a load of 2 kN bends by approx. 3.1 mm. A ba-sic rule of thumb is: The shorter the bracket, the less the bend will be.

Finding the appropriate bracket for the cable load

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Finding the appropriate support for the cable load

Load diagram legend 1 = Bend in mm at the bracket tip2 = Load in kN/m without human weight-- = Load curves for the various bracket lengths

Information 1: Various support lengths and bracket widthsThe load capacity of a cable support system is not just dependent on the width of a bracket, but also on the length of a suspended support. The load curves in the diagram provide information on the load capacity of a suspended support of length 600, 1,000, 1,500 or 2,000 mm, taking the bracket width into account.

Information 2: Calculation of the de-flection for the exampleThe weight of the total suspended support/bracket/cable tray system causes an excursion of the suspend-ed support from the vertical. The ex-cursion value can be read off from the axis on the left edge of the diagram. In our example (blue background), a 1,500 mm-long suspended support, together with a 400 mm-wide bracket and a weight load of 4 kN at the end of the support will produce a deflec-tion of approximately 14 mm.

Information 3: Calculation of the excursion at maximum load for the exampleThe deflection of the suspended sup-port at a maximum load can also be read off on the diagram. Our blue ex-ample shows a deflection of roughly 18 mm at the end of the support for a 1,500 mm-long suspended support in combination with a 400 mm-wide bracket at a maximum cable load of approximately 5 kN.

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Cable glands and DIN EN 50262

Cable glands are manufactured and tested according to DIN EN 62444. Amongst other things, this standard con-trols the retaining ability and strain relief of cables. The V-TEC cable glands from OBO Bettermann correspond to version “A”. Table 2A indicates the extraction forces that these cable glands must be able to withstand, ac-cording to the standard. The V-TEC cable glands also fulfil the requirements of DIN EN 62444 with regard to the twist protection of cables (see Table 3). To ensure the

tested dust and moisture protection of the cable glands, continuous perforations should correspond to the mount-ing openings specified in the standard DIN EN 62444 according to Table 1. The on-site specialist must ensure that these parameters are complied with in order to hand over a functioning system.

Table 1

Size of the penetration hole mm 6 8 10 12 16 20 25 32 40 50 63 75

Thread of the cable gland M M6 M8 M10 M12 M16 M20 M25 M32 M40 M50 M63 M75

Diameter of the mounting hole (+0.2/–0.4) mm 6.5 8.5 10.5 12.5 16.5 20.5 25.5 32.5 40.5 50.5 63.5 75.5

Table 2 ACable diameter Retaining capacity Strain relief, version Amm N Nto 4 5 --

>4 to 8 10 30

>8 to 11 15 42

>11 to 16 20 55

>16 to 23 25 70

>23 to 31 30 80

>31 to 43 45 90

>43 to 55 55 100

>55 70 115

Table 3

Cable diameter TorqueVersion A and B

mm Nm>4 to 8 0.10

>8 to 11 0.15

>11 to 16 0.35

>16 to 23 0.60

>23 to 31 0.80

>31 to 43 0.90

>43 to 55 1.00

>55 1.20

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Information on cable fastening

Cable fasteningThe standard DIN EN 61914 “Cable holders for electrical installations” specifies that cable holders “must be able to accept cables or cable bundles of the diameter spec-ified by the manufacturer or responsible retailer, without tearing or breaking or shearing off the threads of bolts”. During the installation of cables, the current national and international standards must be taken into account, such as DIN VDE 0100 520. “Suitable tools and methods, which prevent damage or changes to the shape” must be used for fastening. In addition, with masses of cables, DIN VDE 0298 re-quires the appropriate “load capacities of cables for fixed laying in and on buildings...” to be taken into account when selecting the fastening systems. Besides these standardising aspects, the end customer‘s or client‘s particular laying specifications can/must be

taken into account. The fastening spacing for cables is given in DIN VDE 0100-520, June 2003. For example, cables laid horizon-tally require a spacing of 20x the cable diameter. How-ever, a spacing of 80 cm should not be exceeded. With vertical laying, the clip spacings may be increased but should not exceed 1.5 m. The table below shows the maximum fastening spacings for cables according to the cable diameter. The laying spacings given in the “Industrial installations” product catalogue, e.g. for bus holders or Quick clips, are guide values and can only be treated as such.

External diameter of the cables Maximum spacing for horizontal fastening Maximum spacing for vertical fasteningmm mm mmD ≤ 9 250 400

9 < D ≤ 15 300 400

15 < D ≤ 20 350 450

20 < D ≤ 40 400 550

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Classification of installation pipes (according to DIN EN 61386-1)

The OBO Bettermann pipe systems are machined and tested according to DIN EN 61386 (Electrical installation pipe systems for electrical energy and information) and DIN EN 60423 (External diameters of electrical installa-tion pipes and thread for electrical installation pipes and their accessories).

Numeric codeDIN EN 61386-1 classifies installation pipes using a 12-digit numeric code, which provides information on the pressure resistance, impact resistance or use tempera-tures. You can find the first five digits in the product de-scriptions of the pipe systems.

First digit Second digit Third digit Fourth digit Fifth digit

Pressureresistance

Impactresistance

Minimum usetemperature

Maximum usetemperature

Bending behaviour

1 Very light (125 N) 1 Very light

(0.5 kg/100 mm) 1 + 5 °C 1 + 60 °C 1 Rigid

2 Light (320 N) 2 Light

(1.0 kg/100 mm) 2 − 5 °C 2 + 90 °C 2 Bendable

3 Medium(750 N) 3 Medium

(2.0 kg/100 mm) 3 − 15 °C 3 + 105 °C 3 Bendable, self-healing

4 Heavy (1250 N) 4 Heavy

(2.0 kg/300 mm) 4 − 25 °C 4 + 120 °C 4 Flexible

5 Very heavy(4000 N) 5 Very heavy

(6.8 kg/300 mm) 5 − 45 °C 5 + 150 °C

6 + 250 °C

7 + 400 °C

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Classification according to IEC EN 61386-1: Corrosion protection

Protection against mechanical loadsOBO metal pipes are particularly suited to use under tough industrial conditions. They provide reliable protec-tion against very heavy mechanical loads during cable routing.

The different material and surface qualities, from galva-nised to painted, allow perfect adaptation to the require-ments of the appropriate environment.

Maintenance of electrical function E30/E90 Our steel pipes guarantee the maintenance of electrical function to E30/E90. They are thus ideal for the connec-tion of safety-relevant equipment, such as fire alarm sys-tems.

Resistance against corrosion Suitable surfaces1 Low protection, inside and outside

2 Medium protection, inside and outside• Painted black (SW)• Electrogalvanised (G)• Strip galvanised (FS)

3 Medium protection inside, high protection outside

4 High protection, inside and outside • Hot-dip galvanised (FT)• Stainless steel (V2A, V4A)

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Definition of electromagnetic compatibility (EMC)


In recent years, the use of electronic circuits has in-creased continually. Whether in industrial systems, med-icine, households, telecommunications systems or elec-trical building installations – we find powerful electrical equipment and systems everywhere, and these switch ever greater currents, achieve greater radio ranges and transport ever more power in smaller spaces. However, the use of state-of-the-art technology means that the complexity of applications also increases. The consequence of this is that ever more opposing influenc-es (electromagnetic interferences) can occur from sys-tem parts and cables, causing damage and economic losses.

Here, we talk of electromagnetic compatibility.Electromagnetic compatibility (EMC) is the ability of an electrical unit to function satisfactorily in its electromag-netic environment, without inappropriately influencing this environment, to which other units also belong (VDE 0870-1). In terms of standardisation, electromagnetic compat-ibility is dealt with by the EMC directive 2004/108/EC. This means that electrical resources emit electromag-netic interferences (emissions), which are picked up by other devices or units (immission) that act as receivers (interference sink). This, in turn, means that the function of an interference sink can be severely reduced, and, in the worst-case scenario, total failure and economic loss-es. The interferences can then spread along cables or in the form of electromagnetic waves.

Path of faultsPath of faultsFault source (transmitting emissions) Coupling of interference variables (spreading of interference) Fault sink (receiving emissions)For example- Mobile telephones- Switching components- Ignition systems- Frequency converters- Lighting strike- Welding devices

- Galvanic- Inductive- Capacitive- Electromagnetic

- Process computer- Radio receiver systems- Controllers- Converters- Measuring units

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Guaranteeing EMC


Guaranteeing EMCA systematic planning process is necessary to guaran-tee EMC. The interference sources must be identified and quantified. The coupling describes the spread of the interference from the interference source up to the in-fluenced device, the interference sink. The task of EMC planning is to ensure the compatibility at the source, coupling path and sink using suitable measures. During their daily work, planners and installation engineers are confronted with this subject on an increasingly regular basis. This means that EMC is a basic factor to be taken into consideration during the planning of installations and cabling systems. Due to the high complexity of electro-magnetic compatibility, the problems of EMC must be analysed and solved using simplifying hypotheses and models as well as experiments and measurements.

Cable support systems and their contribution to EMCCable support systems can make an important contribu-tion to the improvement of EMC. They are passive and can thus make a safe, long-lasting contribution to EMC through the fact that cables are run within cable support systems or are shielded by them. Routing cables inside cable support systems greatly re-duces the galvanic coupling and coupling due to electri-cal and magnetic fields in the cables.

Thus cable support systems can make a contribution to the reduction of coupling from the source to the sink. The shielding action of cable support systems can be quantified by the coupling resistance and the shield at-tenuation. This gives the planner important engineering parameters for cable support systems for the EMC en-gineering.

Lightning dischargeFrom the analysis of the effectiveness of EMC in buildings (EN 62305-4), we know that lightning discharge is one of the greatest sources of interference to be expected. This causes a direct current feed into the entire equipo-tential bonding system in the building and/or to magnetic decoupling of interference currents in electrical cables. With regard to these couplings, cable support systems can offer an effective contribution to the reduction of in-terference voltages.

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Magnetic shield insulation of cable support systems


The magnetic shield insulation of cable support systems is the ratio in decibels (dB) of an induced voltage into an unprotected cable to the induced voltage into the same cable, when this is in a cable support system.

Experimental structure to determine the magnetic shield insulation of cable support systems: An unshielded cable (NYM-J 5x6 mm²) is subjected to an 8/20 magnetic field with a strength of 3 kA/m. Here, the induced voltage V1 is measured in the unshielded cable. The same cable is then positioned in the centre of a ca-ble support system (once with a cover, once without) and subjected to the same magnetic field of 3 kA/m. Here, the induced voltage V2 is measured in the unshielded cable. The magnetic shield insulation is calculated from the measured values according to the formula:αS = 20 log (V1/V2) dB

The magnetic field (H) of strength 3 kA/m in a defined experimental set-up: without cable support system on the left, with cable support system on the right. 1 = Field H, 2 = V1 LzuPE

Magnetic shield insulation 8/20 dB

Experiment result:The magnetic shield effect αS of a cable support system could be clearly proved by the experiments and the sim-ulation with an FEM program. The best result of around 50 dB was achieved with cable support systems (cable trays) with covers. Note:The shield insulation against electrical fields is as it is with a Faraday cage, almost perfect.

Type, cable tray/cable ladder Without cover With coverRKSM 630 FS 20 50

MKS 630 FS 20 50

MKS 630 FT 20 50

MKSU 630 FS 20 50

MKSU 630 FT 20 50

MKSU 630 VA 20 50

GRM 55/300 FS 15 34

LG 630 NS FT 10 15

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Transfer impedance of cable support systems


Transfer impedance (coupling resistant) of cable sup-port systemsThe transfer impedance of a cable support system is the ratio of the measured voltage VInterference, measured in the lengthwise direction within the cable support system, to the coupled current IInterference. The transfer impedance is determined in the same way as with the measurement of the electrical conductivity properties in Chapter 11.1. (DIN EN 61537). If there is a lightning strike on a building, partial currents will flow through the entire equipotential bonding system. Installed cables are best run within a cable support sys-tem. Installed cable support systems are always includ-ed in the equipotential bonding system. In so doing, the partial current flows via the cable support system. A very small component can therefore still flow along the cables laid within the cable support system. This component is determined by the transfer impedance of the cable sup-port system.

Experimental structure for transfer impedance: 1 = length l, 2 = U, 3 = I, 4 = pulse source 8/20

ZT : Transfer impedance VInterference: Interference voltage meas-ured in cable IInterference: Interference current, fed into the shield from outside (KTS) L: Length of the cable support sys-tem

The following applies for the transfer impedance:ZT = VInterference/(IInterference x L) [mΩ/m] The values given are based on measurements, in which a pulse current of the wave shape 8/20 was passed through a defined length of a cable support system. Experiment result:The effect of the cable support system against galvanic coupling was clearly proved by the experiments. The best result was achieved with cable support systems (cable trays) with covers.

Transfer impedance 8/20 mOhm/m

Type, cable tray/cable ladder Without cover With coverMKS 630 FS 1.14 0.71

MKS 630 FT 1.14 0.71

MKSU 630 FS 0.44 0.09

MKSU 630 FT 0.44 0.09

GRM 55/300 FS 6.17 5.5

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Maintenance of the electrical supply

Safety in case of fireTo ensure that emergency and escape routes and impor-tant technical equipment such as emergency lighting, fire alarm systems and smoke exhaust systems remain usa-ble in case of fire, it is absolutely essential to provide spe-cial protection for the power supply for these systems. The use of special cables and routing systems means that it is possible to maintain the power supply, even in the case of fire, thus guaranteeing the maintenance of electrical function. You can find detailed information on the subject of fire protection in the OBO protective installation catalogue.

Maintenance of electrical function is particularly impor-tant in buildings regularly frequented by large numbers of people. These include public buildings such as schools, hospitals, meeting places, civic buildings and under-ground stations, but also industrial plants, high-rise build-ings, shopping centres and large car parks. Fire loads of installation systemsAccording to rules governing wiring systems in the indi-vidual German federal states, no fire loads may be in-stalled in emergency and escape routes. OBO’s fire-test-ed steel fastenings fulfil these requirements.

Junction boxes with integrated maintenance of electrical function ensure the fireproof connection of the safety cables. The boxes in the FireBox series are tested and approved for 30 to 90 minutes of the maintenance of electrical function in accordance with DIN 4102-12.

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30 minutes:maintenance of electrical function for an evacuation.The first 30 minutes after the start of a fire are decisive when clearing the affected building. During this time, the maintenance of the electrical supply must be guaranteed for the following units:

• Safety lighting systems• Lifts with fire control• Fire alarm systems• Alarm systems and systems to issue instructions to vis-

itors and employees• Smoke extraction systems

90 minutes:Maintenance of electrical function for better fire-fight-ing.To support firefighting operations, it is imperative that cer-tain technical equipment is supplied with sufficient power even up to 90 minutes after a fire breaks out in a building. This equipment includes:

• Systems to increase the pressure of the water for fight-ing the fire

• Mechanical smoke extraction and smoke protection pressure systems

• Fire brigade lifts, bed lifts in hospitals

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Individual routing systems for the maintenance of electrical function

Standard routing type, clamp clip, type 2056Standard support construction consisting of clamp clip without long trough for individual laying or bundling ca-bles.

• Wall or ceiling mounting• Horizontal installation• Rail mounting: Max. 0.3 m• Anchor spacing in the rail: Max. 0.25 m• Individual cable assignment: Diameters of up to 100

mm possible• Assignment with bunched cables: Max. 3 cables with

max. diameter 25 mm

Type 2031/M 30• Fastening distance: Max. 0.5 m• Cable assignment: Max. 2.5 kg/m


Collecting clampCable-specific laying type with cable tidies for individual laying, horizontal/vertical mounting on wall or ceiling.


With the individual laying systems, OBO Bettermann can offer a range of practical, flexible mounting options for electrical installations with the maintenance of electrical function. The systems are suited to vertical and horizontal installation and are approved for the fire protection class-

es E30 to E90. Standardised supporting constructions as defined in the testing standard, DIN 4102 Part 12, include: The laying of cables with individual clips and the laying of cables with profile rail, clamp clip and a long trough.

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Standard routing type, single clip, type 732/733Standard support construction consisting of spacer clips for individual laying or bundling cables.

• Wall or ceiling mounting• Vertical or horizontal mounting• Mounting spacing: Max. 0.3 m• Individual cable assignment: Diameters of up to 50

mm possible• Assignment with bunched cables: Max. 3 cables with

max. diameter 25 mm

Type 2033 M• Fastening distance: Max. 0.5 m

Type 2034 M• Fastening distance: Max. 0.5 m

Pressure clips Cable-specific laying type with pressure clips for individ-ual laying, mounting on the ceiling.

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Standards, specifications and certifications


StandardsOBO offers products for professionals, made by profes-sionals: Our products are manufactured and tested ac-cording to the respective specifications of the standards. For example, DIN EN 61537 describes all the relevant parameters for cable support systems, such as area of application, test conditions, corrosion resistance and temperature classification. As a competent manufacturer, OBO subjects itself to these requirements on a daily ba-sis. Comprehensive test procedures guarantee that sys-tems which conform to standards function safely.

SpecificationsAll the OBO products and systems are CE-compliant ac-cording to the appropriate EC guidelines. This also ap-plies to standard parts such as bolts, washers and nuts that are components of various product systems. The appropriate EC declaration of conformity certifies agree-ment with the named directives or standards, but does not guarantee properties. The safety instructions in the product information and the general safety regulations must be complied with during installation and use.

CertificationsFor OBO, product quality is closely connected to continu-ous testing and checking − which is why we manufacture almost all our products ourselves. This enormous depth of production is an expression of our demand for quality. From construction, and the materials used through pro-duction, right up to logistics, our employees personally guarantee the quality and availability of OBO products. The multitude of approvals emphasise our high demand for quality and product functionality. Our integrated quality management system forms the solid basis of our ISO 9001 certification, which we have held since 1994. The confirmation of suitability enables defined and workable processes in accordance with KTA 1401 and 10 CFR 50.

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Certificates and test marks


VDEVDE is the Association for Electrical, Electronic and In-formation Technologies, their study and the technologies and applications based upon them. The VDE mark on electrical equipment is proof that the equipment com-plies with VDE regulations and/or European or interna-tional harmonised standards, and meets the safety re-quirements of the applicable directives. The VDE mark indicates that a product is safe in relation to electrical, mechanical, thermal, toxic, radiological and other haz-ards.

CE symbolTechnical resources included in a legal ordinance, i.e. electrical resources, machines and safety components, must have a CE symbol, with which the manufacturer confirms that the safety requirements of the ordinances are fulfilled. In addition, there must also be a declara-tion of conformity and technical documentation. The CE symbol is not a quality mark, but simply a declaration by the manufacturer that they have complied with the legal requirements and the codes of practice.

ULUnderwriters Laboratories (UL) is an independent organ-isation that tests and certifies product safety. UL certifi-cation is generally required if a product is to be sold on the US market.

UL offers various certification options: the “UL Listed” test mark indicates that UL has tested representative samples of a product and that it conforms to UL’s safety require-ments. The “UL Recognized” component test mark enti-tles a product to be used in a product or system bearing the “UL Listed” test mark.

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Every test mark at a glance


DES IGN

ASSESSED

American Bureau of Shipping, USA

STOWARZYSZENIE ELEKTRYKÓW POLSKICH, Poland

Forschungs- und Materialprüfungsanstalt, Germany

Deutsches Institut für Bautechnik Berlin, Germany

Labelling of metric products

CEBEC, Belgium

Halogen-free; without chloride, fluoride or bromine

ATEX certificate for explosive areas

AFNOR Quality symbol of the French stand-ardisation institute

Österreichischer Verband für Elektrotechnik, Austria

German Association of Electricians, tested safety

South African Bureau of Standards

Underwriters Laboratories Inc., USA


AENOR, Producto Certificado, Spain

FIMKO, Finland

DEMKO, Danmarks Elektriske Materielkontrol, Denmark

KEMA-KEUR, Netherlands

Lightning current-tested, Class H (100 kA)

Test marks for technical resources, tested safety

ENEC Austria

NEMKO, Norway

Lightning current-tested

Russia, GOST The State Committee for Standards

Det Norske Veritas

MAGYAR ELEKTROTECHNIKAI ELLENŐRZŐ INTÉZET Budapest, Hungary

Canadian Standards Association, Canada

INMETRO, Brazil

ELEKTROTECHNICKÝ ZKUŠEBNÌ ÚSTAV, Czech Republic

Underwriters Laboratories Inc., USA + CSA, Canada

Verband der Elektrotechnik, Elektronik, Infor-mationstechnik e.V., Germany

Eidgenössisches Starkstrominspektorat, Switzerland

RINA 1861, Ship Classification, Certification and Services

Sähkötarkastuskeskus Elinspektionscentralen Electrical Inspectorate, Finland

INSTITUTO ITALIANO DEL MARCHO DI QUALITÁ, Italy

5-year warranty

Shock-tested, Bundesamt für Zivilschutz, Germany

SEMKO An Inchcape Testing Services Com-pany, Sweden


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First-hand support and knowledge


OBO KTS seminars: First-hand knowledgeWith a comprehensive programme of training courses and seminars, OBO supports its customers with first-hand specialist knowledge. Besides the theoretical prin-ciples, practical everyday implementation is also dealt with. Special calculation and application examples round off the comprehensive programme of knowledge transfer.

Invitations to tender, product information and data sheetsWe can make life easier for you, with our comprehensive selection of materials designed for practical applications, which provide you with effective support with the plan-ning and calculation of a project. These include:• Invitations to tender• Product information• Information sheets• Data sheets

Invitations to tender on the Internet at www.ausschreiben.de More than 10,000 entries can be accessed free of charge. Regular updates and extensions mean that you always have a comprehensive overview of the OBO prod-ucts. All the current file formats (PDF, DOC, GAEB, HTML, TEXT, XML, ÖNORM) are available. www.ausschreiben.de

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OBO Construct – planning software and product configurators


Currently available versions:

• Cable support systems AutoCAD plug-in version 3.0 (AutoCAD full version from 2013)

• Underfloor systems Planning tool version 3.0 (web app for all devices)

• Transient and lightning protection systems Earthing systems version 1.0 (web app for all devices)

• Fire protection systems Insulation selection aid version 3.0

• (web app for all devices)• Transient and lightning protection systems

Surge protection version 1.0 (web app)

• Cable support systems Cable assignment version 3.0

• (web app for all devices)

More informationwww.obo-construct.com

The OBO Construct electronic planning aids are pro-grams developed to support electrical installation engi-neers and planners in the design of electrical installation systems.

By systemically querying technically relevant planning parameters, these programs simplify the search for suita-ble products and related system accessories.

All new OBO Construct apps have responsive design. They can be opened on any device, regardless of oper-ating system.

Advantages:• Work aid independent of time and place• Transmit planning requirements to complete product

systems• Find suitable products quickly and simply• Calculate quantities automatically• Download configuration results as Excel or Word files

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Cable trays

Magic® cable tray system 60

MKS-Magic®, SKS-Magic® cable tray system 66

MKS, SKS, DKS, IKS cable tray system 72

Wide span cable tray system 80

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The RKS-Magic® cable tray system permits particularly fast straight connections of cable trays. The innovative, screwless straight connector can be mounted in the blink of an eye. Just connect the ends of the cable tray, lock them in place ‒ and you‘re done! The long-lasting, stat-ic straight connectors can be permanently stabilised by bending the connection flaps. The RKS-Magic® cable tray is available with the side heights 35 and 60 mm. A com-prehensive range of fittings with bends (45° and 90°), tees, add-on tees and cross-overs completes the system. 90° bends and adjustable vertical riser (rising/falling) are available for vertical changes of direction. When mount-ing fittings, always plan additional supports.

Besides the various fittings, the system also includes all types of connectors (straight, angle and adjustable connectors) and additional accessories such as barrier strips, joint plates, mounting plates and lids. You can find detailed mounting aids and article de-scriptions for this system on the following pages. The RKS-Magic® cable tray is tested for routing with the main-tenance of electrical function. You can find comprehen-sive information on this in our new Safety and protective installations product catalogue.

Magic® cable tray system

System description

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Installation principle

11 Unperforated cover and cover clamp

1 RKSM cable tray2 90° Magic bend3 45° Magic bend4 Magic tee5 Magic horizontal cross-over6 Magic add-on tee7 Reducer/stop-end8 Magic straight connector set9 Cover with turn buckle10 Adjustable bend element

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Mounting aid


Centre suspension applicationDirect centre suspension with threaded rod, type 2078/M10. This mounting variant is possible for RKS cable trays of width 50 to 200 mm.

Quick fastening of cable tray on the bracketThe quick fastening is pushed upwards and turned through 90°. After locking, the quick fas-tening is fastened permanently by tightening it.

Releasing the connectionThe straight connector can be released again at any time. To do this, push a screwdriver under the spring element to release the lock.

Ceiling mounting application, U support with bracketStandard mounting of a cable tray with sus-pended support, type US, and suitable support bracket, type AW.

Straight cable tray connection, sleeve mount-ing The connected cable trays are fixed in place by bending the connection straps in the base with a screwdriver.

Mounting of Magic KTSMV straight connector set To strengthen the connection, we recommend screwing on the joint plate for widths of more than 400 mm.

Wall mounting application with bracket Standard cable tray mounting on the wall with wall and support brackets.

Straight cable tray connection, sleeve moun-ting The spring element of the cable tray to be con-nected is snapped into the spring seat of the preceding cable tray from above.

Floor fasteningFloor fastening at a distance with stand-off bracket, type DBL.

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Horizontal angle connection of cable trays Horizontal angle connection of cable trays for brackets created during construction and cut cable tray ends.

Mounting of Magic bendMounting of fittings by simple interconnection. For this, the cable tray with the spring side is locked into the fitting connection from above.

Mounting of Magic cross-overMounting of fittings by simple interconnection. For this, the cable tray with the spring side is locked into the fitting connection from above.

Vertical adjustable connection of cable trays Vertical adjustable connection of cable trays for construction-side height jumps of any angle.

Mounting of Magic add-on tee Mounting of fittings by simple interconnection. For this, the cable tray with the spring side is locked into the fitting connection from above.

90° bend (rising/falling)The 90° vertical bend is pushed over the rail of the cable tray and bolted with truss-head bolts, FRSB M6 x 12 mm. The cover is placed on loosely and fastened using the incoming cable tray covers. The cover clamp DKU can be used for additional fastening.

Width change and end closure Illustration of a width change through the instal-lation of the reducing bracket. This component allows the implementation of an end closure of cable trays.

Mounting of Magic vertical add-on tee (bottom view)Vertical mounting of the add-on tee as length-wise funnel. Perforation in the cable tray is cre-ated on site. For widths > 400 mm, please order connectors separately.

Mounting of rising adjustable vertical bend Adjustable vertical bend to bridge height offsets or when changing from horizontal to vertical. The vertical adjustable bend is fastened to the cable tray directly using adjustable connectors.

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Mounting of falling adjustable vertical bendMounting of the vertical adjustable bend, falling, to bridge height differences and changes from the horizontal to the vertical.

Universal mounting plateThe MP UNI mounting plate is attached by screwing it to the side rail of the cable tray.

Mounting of fitting coverThe fitting cover is fastened to the cable tray us-ing turn buckles; this is done by clamping the turn buckle under the rolled up side rail of the cable tray with a 90° turn.

Mounting of floor end plateThe floor end plate is fastened to the end of the cable tray. It is used to protect outgoing cables.

Cover mounting with turn buckleThe cover is fastened to the cable tray using turn buckles; this is done by clamping the turn buckle under the rolled up side rail of the cable tray with a 90° turn.

Screwless barrier strip mountingScrewless mounting of the TSG ... barrier strip with the KS KR hold-down clamp. The barrier strip can be run over the joint and connected without bolts and without processing using the barrier strip connector TSGV.

Mounting plate with quick fasteningFastening of the mounting plate, type MP, on the side rail of the cable tray. The mounting plate can be fastened to the rail with quick connec-tors, and permanently fastened using truss-head bolts of type FRSB 6x12 mm.

Screwless cover mountingScrewless cover mounting takes place with un-perforated covers and the cover clamps, type DK DRLU. The cover clamp is simply fixed in the rail of the cable tray.

Screwed barrier strip mountingScrewed barrier strip fastening of the barrier strip TSG 60, with truss-head bolts M 6x12. The barrier strip can simply be run over the joint and connected without bolts using the barrier strip connector TSGV.

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The cable tray is suitable for universal cable routing. From low-voltage cabling to power supplies, from data cables to telecommunications networks. A full product range, with suitable system components, can create per-fect solutions for any task. No matter whether used in dry inner areas or in aggressive atmospheres: Different sur-face versions and materials ensure safe corrosion protec-tion. Side heights of 60, 85 and 110 mm are available. Due to the high hole proportion of 30% and more, the perforated cable trays MKSM and SKSM of widths of 200 mm or greater are ideally suited for use beneath sprinkler systems. The IKSM cable tray also has large openings in the side rail, which can be used for cable entries or exits.

The complete system is supplemented by connectable, screwless fittings with Magic connection. The system also includes all types of connectors and additional ac-cessories such as barrier strips, joint plates, mounting plates and covers.

You can find detailed mounting aids and article descrip-tions for this system on the following pages.

System description

MKS-Magic®, SKS-Magic® cable tray system

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1 Cable tray MKSM/SKSM2 90° Magic bend3 45° Magic bend4 Magic tee5 Magic horizontal cross-over6 Magic add-on tee7 Reducer/stop-end8 Magic straight connector set9 Cover with turn buckle10 Adjustable bend element


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Mounting aid


Centre suspension application Centre suspension of the cable tray systems MKSM, SKSM and IKSM with a centre suspen-sion type MAH and threaded rod 2078/M10.

Mounting of Magic KTSMV straight connector set Insert the corresponding joint plate, push it down and simply lock it in place. To strengthen the connection, we recommend screwing on the joint plate for widths of more than 400 mm.

Wall mounting application with bracket Standard mounting of a cable tray on the wall with wall and support brackets.

Change of direction by cutting the cable trayCut and bend the cable tray, then fix the cut rail with an angle connector, type RWVL.

Change of direction with separate cable traysTo create a change of direction with 2 separate cable trays, 2 angle connectors are used for fastening.

Mounting of Magic KTSMV straight connector set Simply clamp the two side sections of the con-nector set in the side rail.

Change of direction with separate cable traysCombine the cut trays and fix them from the in-side at the joint using angle connectors, type RWVL.

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Creating a change of direction with variable Magic bendThe variable Magic bend, type RBMV..., can be used to install infinitely variable direction chang-es of 0°‒90° to the route.

Mounting of Magic add-on tee Mounting of fittings by simple interconnection. For this, the cable tray with the spring side is locked into the fitting connection from above.

90° bend (rising/falling)90° bend, rising or falling, for the creation of simple vertical changes of direction.

Vertical adjustable connection of cable trays Vertical adjustable connection of cable tray for construction-side height jumps of any angle.

Mounting of Magic teeMounting of fittings by simple interconnection. For this, the cable tray with the spring side is locked into the fitting connection from above.

Mounting of adjustable vertical bend element Mounting of the adjustable vertical bend ele-ment for the creation of adjustable bends. The adjustable vertical bend element is connected to the cable tray using adjustable connectors.

Mounting of Magic bendMounting of fittings by simple interconnection. For this, the cable tray with the spring side is locked into the fitting connection from above.

Mounting of Magic cross-overMounting of fittings by simple interconnection. For this, the cable tray with the spring side is locked into the fitting connection from above.

Mounting of rising adjustable vertical bend Rising adjustable vertical bend to bridge height offsets. The adjustable vertical bend is connect-ed with to the cable tray using the adjustable connectors.

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Screwless cover mounting Unperforated covers are mounted using cov-er clamps, type DK DRLU. The cover clamps are first clamped to the cover edge and then snapped on to the cable tray rail with the cover.

Installation of reducer/stop-end plateReducer/stop-end plates are used as closure and to reduce the width of cable trays.

Mounting of floor end plateFastening of the bottom end plate, type BEB, to protect the cables.

Barrier strip mounting with screw connection Screwed barrier strip fastening of the barrier strip TSG 60, with truss-head bolts M 6x12. The barrier strip can simply be run over the joint and connected without bolts using the barrier strip connector TSGV.

Universal mounting plateFastening of the mounting plate, type MP UNI, on the cable tray.

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The cable tray is suitable for universal cable routing. From low-voltage cabling to power supplies, from data cables to telecommunications networks. A full product range, with suitable system components, can create per-fect solutions for any task. No matter whether used in dry inner areas or in aggressive atmospheres: Different sur-face versions and materials ensure safe corrosion pro-tection. Side heights of 35, 60, 85 and 110 mm through

to the special cable tray systems DKS and IKS with 30% perforations and large entries and exits are available.When mounting fittings, always plan additional supports.Besides the various fittings, the system also includes all types of connectors and additional accessories such as barrier strips, joint plates, mounting plates and covers.You can find detailed mounting aids and article descrip-tions for this system on the following pages.

System description

MKS, SKS, DKS, IKS cable tray system

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11 Unperforated cover and cover clamp

1 Cable tray MKS/SKS2 90° bend3 45° bend4 Horizontal tee5 Cross-over6 Add-on tee7 Reducer/stop-end8 Straight connector set9 Cover with turn buckle10 Adjustable bend element

MKS/SKS cable tray system

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1 Cable tray DKS2 90° bend3 45° bend4 Horizontal tee5 Cross-over6 Add-on tee7 Reducer/stop-end8 Straight connectors and joint plate9 Unperforated cover and cover clamp10 Adjustable bend element

DKS cable tray system

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1 Cable tray IKS2 90° bend3 45° bend4 Horizontal tee5 Cross-over6 Add-on tee7 Reducer/stop-end8 Straight connectors and joint plate9 Unperforated cover and cover clamp10 Adjustable bend element

IKS cable tray system

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Mounting aid


Centre suspension application Centre suspension of the cable tray systems MKS, SKS, EKS, DKS and IKS with centre sus-pension, type MAH, and threaded rod 2078/M10.

Installation of RV straight connector setStraight connection of the cable trays through simply clamping the connector set RV into the side rail.

Horizontal angle connection of cable trays Horizontal angle connection of cable trays for brackets created during construction and cut cable tray ends.

Direct connection with corner connectors Corner connector, type REV, to increase the an-gle when creating tees without fittings. Addition-al supports should be planned for the area of the branches.

Ceiling mounting application Ceiling mounting of a cable tray with suspended support and wall and support bracket.

Screwless RV longitudinal connector set Press the corresponding joint plate downwards and snap it in place.

Vertical adjustable connection of cable trays Vertical adjustable connection of cable trays for construction-side height jumps of any angle.

Branch with angle connectorsInstallation of built T exit with angle connec-tors, type WKV. Additional supports should be planned for the area of the branches.

Wall mounting application with bracket Standard mounting of a cable tray on the wall with wall and support brackets.

Straight connection with joint cover Cable tray with screwed straight connection and joint plate, type SSLB. The joint plate can also be mounted above the bar of the RV straight connector set.

Bend creation with corner connectorFor 90° bends to be created on-site, the corner connector, type REV, can be used to increase the internal radius.

Installation of reducer/stop-end plateThe reducer/stop-end plate component is used as closure and to reduce the width of cable trays.

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Screwless barrier strip mounting Screwless mounting of the TSG ... barrier strip with the KS KR hold-down clamp. The barrier strip can be run over the joint and connected without bolts and without processing using the barrier strip connector TSGV.

Installation of add-on tee (width 100–300 mm)To mount the add-on tee, separate the cable tray rail and screw it tight. Additional supports should be planned for the area of the fittings.

Installation of vertical add-on tee Vertical mounting of the add-on tee as length-wise funnel.

Barrier strip mounting with bolt connection Screwed barrier strip fastening of the barrier strip TSG 60 with truss-head bolts M6x12. The barrier strip can simply be run over the joint and connected without bolts using the barrier strip connector TSGV.

Installation of add-on tee (width 400–600 mm)To mount the add-on tee, separate the cable tray rail and screw it tight. Additional supports should be planned for the area of the fittings.

Mounting of teeThe tee is connected to the cable tray using connectors and a joint plate. Additional supports should be planned for the area of the fittings.

Installation of bend (width 400–600 mm)The bend in widths 400 to 600 mm is connected to the cable tray using connectors and a joint plate. Additional supports should be planned for the area of the fittings.

Installation of vertical add-on tee Vertical mounting of the add-on tee as length-wise funnel.

Cross-over mountingThe cross-over is connected to the cable tray using connectors and a joint plate. Additional supports should be planned for the area of the fittings.

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90° bend (rising/falling)90° bend, rising or falling, for the creation of simple vertical changes of direction.

Mounting of rising adjustable vertical bendRising adjustable vertical bend to bridge height offsets. The adjustable vertical bend is connect-ed with to the cable tray using the adjustable connectors.

Mounting plate with quick fastening Fastening of the mounting plate, type MP, on the cable tray. The mounting plate can be fastened to the rail with quick connectors, and perma-nently fastened using truss-head bolts of type FRS B.

Mounting of adjustable vertical bend elementMounting of the adjustable vertical bend ele-ment for the creation of adjustable bends. The adjustable vertical bend element is connected to the cable tray using adjustable connectors.

Screwless cover mountingUnperforated covers are mounted using cov-er clamps, type DK DRLU. The cover clamps are first clamped to the cover edge and then snapped on to the cable tray rail with the cover.

Universal mounting plateFastening of the mounting plate, type MP UNI, on the cable tray.

Mounting of falling adjustable vertical bendFalling adjustable vertical bend to bridge height offsets. The adjustable vertical bend is connect-ed with to the cable tray using the adjustable connectors.

Mounting of floor end plateFastening of the bottom end plate, type BEB, to protect the cables.

Fastening on bracketThe cable tray is fastened to the bracket with truss-head bolts FRS M6 x 12.

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Cable tray mounting on steel girders Cable tray mounting with chuck jaws of type TKS-L-25 and U supports as cantilever beams on steel girders. Use spacers, type DSK, for safe functioning.

Creating a height increase or decreaseAfter cutting into the side rail, the cable tray is bent manually at an angle of 0‒60° and fixed with the straight connector RLVKV 60 FS. It is not necessary to cut into the bottom plate.

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When you need to bridge wide spans and support high cable loads, the OBO wide span cable trays are the perfect solution. The product range comprises cable trays with widths of between 200 and 600 mm and side heights of 110 to 200 mm. Comprehensive system ac-cessories such as fittings and all the fastening materials for concrete and steel mounting round off this product range perfectly. OBO wide span cable trays have proven

their worth in many areas of industrial and systems engi-neering. These systems are becoming ever-more popular in buildings with steel framework. OBO wide span cable trays are the complete product range for all applications and requirements. Their large load capacity combined with large spans allows efficient and optimised power supply.

System description

Wide span cable tray system

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1 Wide span cable tray2 90° bend3 Add-on tee4 Straight connector5 Barrier strip6 Cover with turn buckle


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Mounting aid


Wall mounting applicationDirect wall mounting of wide span cable trays.

Creation of a tee with an add-on cornerRemoval of the side rails from the wide span cable tray.

Creation of a tee with an add-on cornerMounting of the finished branch to the ongoing wide span cable tray.

Wide span straight connectionHorizontal straight connection of wide span ca-ble trays with straight connector set, type WRVL.

Creation of a tee with an add-on cornerMounting of the second add-on corner, type WEAS 110.

Mounting of an add-on teeAdd-on tee in combination with wide span cable tray. The side rail is removed for mounting.

Mounting of 90° bend Bend in combination with wide span cable trays. The bend is connected to the wide span cable tray using external connectors and a joint plate.

Creation of a tee with an add-on cornerRemoval of the side rail from the ongoing wide span cable tray.

Mounting exampleDouble-sided suspended support mounting made of U profiles with transverse traverse. Fas-tening of a wide span cable tray, type WKSG 110, with truss-head bolts on the transverse profile.

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Mesh cable trays

GR-Magic® mesh cable tray system 86

Magic® G mesh cable tray 92

C mesh cable tray 94

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OBO Bettermann’s mesh cable tray systems are the ide-al basis for quick, safe and economical cable routing in all areas of professional electrical installations. The GR-Magic mesh cable tray system with shaped connec-tor for screwless quick mounting guarantees the shortest possible installation times, even for complex mounting operations. The mesh cable trays are available with side

heights of 35, 55 and 105 mm in the electro-galvanised, hot-dip galvanised and stainless steel versions. The com-prehensive range of practical accessories, such as mesh cable tray bends, hold-down clamps, quick connectors, barrier strips, suspension profiles, brackets, etc. ensures that the product range is complete down to the smallest detail.

System description

GR-Magic® mesh cable tray system

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1

14

Mesh cable tray GR-Magic

Central suspension, GMS2

15

90° mesh cable tray bend

Barrier strip3

16

Mesh cable tray connector, long

Mounting plate4

17

90° mounting bracket

Fastening element for junction box5

18

Stand-off bracket

Wall and ceiling bracket6

19

Slotted steel strap, bent

Wall and support bracket TPSAG7

20

Corner connector

Cable exit plate8

21

Joint connector

Wall and support bracket AWG 159

22

11

Cover, unperforated

Hold-down clamp for barrier strip fastening

Mounting rail, MS 41

10

23

12

Cover clamp, variable

Barrier strip connector

Ceiling bracket


13 TP suspended support

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Mounting aid


Ceiling mounting applicationMounting of mesh cable trays with suspended support, type US 3 K/... and appropriate wall and support bracket AW 15/...

Wall and floor fastener WB GR Fastening component for direct mounting of mesh cable trays to the wall and floor. Can be screwed or riveted on. Suitable for wire thick-ness 3.9 mm.

Screwed straight connection of mesh cable traysCreation of a screwed straight connection of mesh cable trays with joint connectors, type GSV 34.

Wall mounting GRM 35 50Wall mounting for direct wall fastening of mesh cable trays GRM 35 50.

Ceiling mounting with TP wall and ceiling bracketCeiling mounting of a mesh cable tray with TP wall and ceiling bracket, type TPDG. The mesh cable tray is fastened to the ceiling clamp with-out screws.

Screwless straight connection with quick con-nectorsCreation of a screwless straight connection of mesh cable trays using a quick connector, type GRV.

Wall fastening of mesh cable trays Wall fastening of mesh cable trays with wall bracket, type K 12 1818. Maximum mesh cable tray width 200 mm.

Straight connection of Magic® mesh cable tray Creation of a screwless straight connection of the mesh cable tray, type GR-Magic®, by inter-connecting two stock lengths.

Screwless straight connection of mesh cable traysCreation of a screwless straight connection of mesh cable trays with joint connectors, type GRS.

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Screwless barrier strip fastening Screwless fastening of a barrier strip in mesh ca-ble trays with hold-down clamp, type KS GR. The screwless straight connection of the barrier strip is made using the barrier strip connector TSGV.

Installation of a mesh cable tray bendInstallation of a complete mesh cable tray bend using joint connectors, type GSV 34, and bent slotted steel strap.

Direct floor fasteningDirect floor mounting of mesh cable trays using hold-down clamp, type GKS 50.

Screwed-on barrier strip fastening in mesh cable traysFastening a barrier strip in mesh cable trays with hold-down clamp, type GKT 38.

Stand-off of mesh cable trays Floor stand-off of mesh cable trays with the stand-off bracket, type DBLG 20/... Screwless fastening of the mesh cable tray on the stand-off bracket using clamping lugs.

Fastening clip on MS profile rail Screwless, rapid fastening of mesh cable trays on MS profile rails with the help of the fastening clip, type BC SGR 4.8 VA for wire thicknesses of 3.9 and 4.8 mm or BC GR 6.0 VA for wire thickness of 6 mm.

Installation of a mesh cable tray bend Mounting of a mesh cable tray bend, type GRB 90, with joint connectors, type GSV 34, and cor-ner connector, type GEV 36.

Mounting adapter for mesh cable trays on stand systemsMounting system TrayFix for fastening mesh ca-ble trays on FangFix blocks (10 or 16 kg) for cable routing on flat roofs.

Centre suspensionSuspension of a mesh cable tray using threaded rod, type 2078, and wall and floor fastener, type K12 1818. For use with widths of up to 200 mm.

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Pendulum suspensionSuspension of a mesh cable tray using thread-ed rod, type 2078, and wall and floor fastener, type K12 1818. For use with widths of 300 mm or more.

Side holderMounting of the side holder, type SH KAB, for accepting cable glands.

Cover mountingCover with snap-on function for easy locking to the mesh cable tray.

Centre suspension with hanger Centre suspension of a mesh cable tray with hanger, type GMS, and clamp, type GKS 50.

Mounting plateScrewless quick fastening of the mounting plate, type MP UNI.

Girder clamping applicationVertical mesh cable tray mounting, fixed with fix-ing clamp, type BFK, and hold-down clamp, type GKS 50, to steel girder.

Suspension with side holderSuspension of a mesh cable tray with side holders, type SH M 10 and threaded rods, type 2078/M10.

Identification plateMounting of the identification plate, type KS-GR, in the side rail of the mesh cable tray.

Mounting of mesh angleFastening of the mesh angle, type GW 40/80, to steel girders using beam clamps, type KL 20 or KL 30.

Creation of a mesh cable tray bend – angular, overlappingAfter the mesh cable trays have been cut to size, they can, together with joint connectors, type GSV 34, and a bent slotted steel strap, be installed overlapping to form an angular mesh cable tray bend.

Creation of a mesh cable tray bend – angular After the mesh cable trays have been cut to size, they can, together with joint connectors, type GSV 34, and a bent slotted steel strap, be installed as a non-overlapping, angular mesh cable tray bend.

Creation of a mesh cable tray bend – round, overlappingAfter the mesh cable trays have been cut to size, they can, together with joint connectors, type GSV 34, and a bent slotted steel strap, be installed overlapping to form a round mesh ca-ble tray bend.

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Creation of a mesh cable tray bend – round Cutting out every second grid of a mesh ca-ble tray allows the creation of mesh cable tray bends with a larger radius. Fixing takes place using corner connectors, type GEV 36.

Creation of a mesh cable tray cross-over After cutting the side rails and bending the straps, the corner connector, type GEV 36, and the joint connector, type GSV 34, can be used to create cross-overs.

Mesh cable tray with cable exit plate Cable exit plate for screwless mounting in mesh cable trays. The cable exit plate allows mainte-nance of pre-specified bend radii.

Rising and falling bendsRising and falling vertical bends can be created by cutting every second grid in the mesh cable tray edge and bending the mesh cable tray ac-cordingly.

Creation of a vertical exitAfter cutting the mesh cable tray base, the ver-tically branching, cut mesh cable tray can be fixed using the joint connector, type GSV 34.

Mesh cable tray with cable exit plateThe cable exit plate can be installed in length-wise and transverse directions.

Creation of a mesh cable tray tee After cutting the side rails and bending the straps, the corner connector, type GEV 36, and the joint connector, type GSV 34, can be used to create tees.

Creation of a reductionReductions are possible by single-sided cutting of the different mesh cable tray widths, bending the flaps in the required direction and using the corner connectors, type GEV 36, and the joint connector, type GSV 34.

Earthing terminal/earth connection Earthing terminal for fastening the equipotential bonding wire to the cable support system.

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The Magic G mesh cable tray is the ideal extension of the Magic solutions for the OBO Bettermann mesh cable tray systems. The quick Magic connection means that a screwless and easy-to-mount variant is now also offered for the G mesh cable tray system. Even when mounting

in false ceilings, it is an ideal alternative through direct wall or ceiling mounting. The Magic G mesh cable tray is available in four sizes and three surfaces, thus offering ideal solutions for all kinds of tasks.

System description

Magic G mesh cable tray

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Mounting aid

Magic G mesh cable tray

Straight connection of Magic G mesh cable trayCreation of a screwless straight connection of the G mesh cable tray, type G-GRM, by intercon-necting two stock lengths.

Direct ceiling mountingDirect ceiling mounting of the Magic G mesh cable tray using the hold-down clamp, type K 12 1818.

Wall fastening of G mesh cable traysWall fastening of G mesh cable trays with wall bracket, type K 12 1818.

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The C mesh cable tray system from OBO Bettermann fulfils the highest requirements for load capacities and versatility. The C shape allows support widths of up to three metres. This system, with its 50 mm side height, together with the optimised accessories such as hold-

down clamps, Quick connectors, barrier strips, suspen-sion profiles, mounting brackets, etc. is an ideal addition to the overall mesh cable tray system. It is used both in industry and in all other areas of professional electrical installations.

System description

C mesh cable tray

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Mounting aid

C mesh cable tray

Straight connection of C mesh cable trayCreation of a straight connection on C mesh ca-ble trays with the joint connector, type GSV 34.

Horizontal bendsImplementation of a horizontal bend for C mesh cable trays with corner connector, type GEV 36.

Vertical bendVertical bend mounting with 90° mounting an-gle.

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96

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Cable ladders

Riveted cable ladder systems 98

Welded cable ladder systems 102

Wide span cable ladder systems 106

Vertical ladder systems 110

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The high load capacity and good ventilation of the OBO cable ladder systems can offer tangible benefits, in par-ticular during the installation of power cables. OBO Bet-termann’s cable ladder systems can be used universally and, due to the continuous rail and rung perforation, offer countless installation benefits. A factor guaranteeing easy mounting is the option of integrated fastening of cables using OBO clamp clips on the rungs, which are available in various different versions. OBO cable ladder systems are shipped partly folded up, thus saving space during

transport and storage. OBO cable ladder systems can be supplied in lengths of 3 m and 6 m, in all standard widths from 200 to 600 mm and with rail heights of 60 and 110 mm. The portfolio is complemented by the wide span cable ladders, which can simultaneously bridge wide gaps and support high cable loads. The wide span cable ladders are available in 6 m lengths, in widths 200 to 600 mm and with rail heights 110 and 160 mm. On the following pages, you can select your preferred mounting variant from the installation diagrams shown.

System description

Riveted cable ladder systems

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14 Barrier strip

11 Adjustable bend element12

13

Adjustable connector

Multifunctional connector

1 Cable ladders2 90° bend, welded3 Tee, welded4 Add-on tee, welded5 Connection piece6 Straight connector7 Support plate8 Inlay plate9 Corner plate10 Cover with cover clamp

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Mounting aid

Suspended support and threaded rod suspen-sion applicationExample of mounting cable ladders with sus-pended supports of U profiles and threaded rod suspension.

Cable ladder centre suspension with U profileMounting of a cable ladder with centre suspen-sion MAHU and a U support.

Horizontal angle connection of cable laddersHorizontal angle connection with straight and angle connectors, type LWVG.

Jump applicationImplementation of vertical jumps with adjustable connectors, e.g. for ceiling joists.

Suspended support suspensionSuspension of a cable ladder with suspended supports and support brackets.

Vertical angle connection of cable ladders Creation of a vertical angle connection using ad-justable connectors, type LGVG.

Centre suspensionThreaded rod suspension of a cable ladder using the centre suspension, type MAHL, and threaded rod, type 2078/M12.

Straight connection of cable laddersStraight connection of cable ladders with straight connector, type LVG.

Mounting of a T exitCreation of a horizontal T exit of two cable lad-ders at different heights. The support profile, type LAW, is required to fix two cable ladders.

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T exit with support plateCreation of horizontal tees for cable ladders run-ning at the same height. To increase the cable support and to protect the cables, use support plates, type LALB. Additional supports should be planned for the area of the exits.

Screwed barrier strip fastening Screwed mounting of the TSG barrier strip through the perforated rung of the cable ladders.

Cover mountingCovers for cable trays and cable ladders can be extended to a locking cover using the cover clamp DK DRLU A2.

Vertical cable exitThe exit plate, type LAB, is used to increase the cable supporting surface for vertically exiting ca-bles and as cable protection.

Straight barrier strip connectionScrewless straight connection of barrier strips in cable ladders using the barrier strip TSGV.

Cable ladder hold-down clamp Cable ladder hold-down clamp KLL for direct mounting of cable ladders on steel girders.

Screwless barrier strip fasteningScrewless fastening of a barrier strip in cable ladders with hold-down clamp, type KS KL.

Mounting of insertion plateMounting of insertion plates, type ELB-L.

Earthing terminal/earth connectionEarthing terminal for fastening the equipotential bonding wire to the cable support system.

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System description

Welded cable ladder systems

The high load capacity and good ventilation of the OBO cable ladder systems can offer tangible benefits, in par-ticular during the installation of power cables. OBO Bet-termann’s cable ladder systems can be used universally and, due to the continuous rail and rung perforation, of-fer countless installation benefits. A factor guaranteeing easy mounting is the option of integrated fastening of cables using OBO clamp clips on the rungs, which are available in various different versions. OBO cable ladder

systems are shipped partly folded up, thus saving space during transport and storage. OBO cable ladder systems can be supplied in lengths of 3 m and 6 m, in all stand-ard widths from 200 to 600 mm and with rail heights of 45, 60 and 110 mm. On the following pages, you can se-lect your preferred mounting variant from the installation diagrams shown and combine the corresponding articles in the order section.

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14 Barrier strip

11 Adjustable bend element12

13

Adjustable connector

Multifunctional connector


1 Cable ladders2 90° bend3 Horizontal tee4 Add-on tee5 Connection piece6 Straight connector7 Support plate8 Inlay plate9 Corner plate10 Cover with cover clamp

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Mounting aid

Adjustable vertical bendAdjustable vertical bends made from adjustable vertical bend elements, type LGBE, with adjusta-ble connectors to bridge height offsets.

Mounting of a T pieceMounting of a T piece, type LT, to create a one-sided branch for cable ladders.

Multifunctional connector for cable laddersCreation of a reduction, including 45° angle, us-ing a multifunctional connector, type LMFV.

Add-on teeCreation of a one-sided branch using an add-on tee, type LAA.

90° bendConnection of two cable ladders at a horizontal 90° angle with a bend, type LB 90.

Add-on tee, symmetrical Mounting two add-on tees, type LAA, on a cable ladder as a symmetrical cross-over.

Multifunctional connector for cable ladders Creation of a one-sided branch using a multi-functional connector, type LMFV.

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When you need to bridge wide spans and support high cable loads, the OBO wide span systems are the per-fect solution. The product range comprises cable trays and cable ladders with widths of between 200 and 600 mm and side heights of 110 to 200 mm. Comprehensive system accessories such as fittings and all the fasten-ing materials for concrete and steel mounting round off this product range perfectly. OBO wide span systems

have proven their worth in many areas of industrial and systems engineering. These systems are becoming ev-er-more popular in buildings with a steel framework. OBO wide span systems are the complete product range for all applications and requirements and, with their large load capacity combined with large spans, provide efficient and optimised power supply.

System description

Wide span cable ladder systems

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1 Wide span cable ladders2 90° bend3 Horizontal tee4 Cross-over5 Straight connector6 Cover with turn buckle7 Barrier strip


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Mounting aid

Wide span fitting application Mounting examples for horizontal and vertical changes of direction for wide span systems.

Horizontal wide span angle connection Horizontal angle connection of wide span cable ladders with angle connectors, type WRWVK.

Mounting of 90° bendBend in combination with wide span cable lad-der. The bend is connected to the wide span cable ladder using external connectors.

Wall mounting applicationDirect wall mounting of wide span systems.

Vertical wide span adjustable connection Vertical angle connection of wide span cable ladders with adjustable connectors, type WRGV.

Mounting of teeTee in combination with wide span cable ladder. The tee is connected to the wide span cable ladder using external connectors.

Girder clamping applicationMounting of a wide span system clamped to steel girders.

Fastening of wide span cable ladders Fastening of wide span cable ladders to the bracket using clamp, type LKS 60/5.

Cross-over mountingCross-over in combination with wide span cable ladder. The cross-over is connected to the wide span cable ladder using external connectors.

Screwless barrier strip fastening Screwless fastening of a barrier strip in wide span cable trays and cable ladders with hold-down clamp, type KS KL.

Screwed barrier strip fasteningBarrier strip mounting in wide span cable lad-ders. Fastening using slide nuts and hexagonal bolts.

Cover mountingMounting of covers with turn buckles.

Wide span fitting application Mounting examples for horizontal and vertical changes of direction for wide span systems.

Wall mounting applicationDirect wall mounting of wide span systems.

Girder clamping applicationMounting of a wide span system clamped to steel girders.

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Wall bracket, heavy dutyMounting of the heavy-duty wall bracket, type AWSS, with clamping angle, type KWS, to steel girder to accept a wide span system. The wall bracket can also be mounted on concrete walls with bolt ties.

45° adapter plateMounting of the 45° adapter plate, type KA-E 45, on the steel girder using clamping angles, type KWS. The adapter plate can also be mount-ed on concrete walls with bolt ties.

Mounting exampleDouble-sided suspended support mounting of I profiles with transverse traverse. Fastening of a wide span cable ladder, type WKL 200, with hold-down clamp, type LKS 60/5, on the trans-verse profile.

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OBO vertical ladder systems for vertical routing of all kinds of cables. Available as heavy-duty vertical ladders with U profiles and as industrial vertical ladders with I profiles. Both the heavy-duty and industrial vertical lad-ders can be assembled in variable lengths. The side rails are standard profiles of type US 5 and IS 8, which are

connected using the appropriate rungs. The continuous rail perforation of the system and the comprehensive ac-cessories simplify and accelerate installation, which can take place either directly on the wall, clamped to a steel construction or also as a free-standing construction. The system is perfectly complemented with OBO clamp clips.

System description

Vertical ladder systems

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1 Light-duty vertical ladder2 Heavy-duty vertical ladder3 Industrial vertical cable ladder4 Cover with spacer5 Rung seat with rung MS4022


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Mounting aid

Straight connection of vertical laddersConnection of vertical ladders, types LG and SSL 60, with connectors, type LVG.

Wall mounting, light-duty vertical ladderWall mounting of light-duty vertical ladder, type SLL 45, with wall bracket, type WB 30/75.

Angle connection of cable laddersCreation of flexible vertical ladder angles with angle connector, type LWVG.

Direct wall mountingDirect fastening of the vertical ladders LG and SSL with bolt ties on the wall.

Adjustable connection of cable laddersCreation of flexible vertical ladder angles with adjustable connector, type LGVG.

Wall mounting, heavy-duty vertical ladderWall mounting of heavy-duty vertical ladder, type SLM 50, with mounting angle, type BW.

Vertical ladder mounting on steelMounting of the heavy-duty vertical ladder, type SLM 50, with cantilever beam made of U profile, on a steel construction.

Cable fastening with clamp clipFastening of cables to the rung with clamp clips.

Fastening of industrial vertical ladderWall mounting of industrial vertical ladder with mounting angle, type BW 80/55.

Wall mounting applicationWall mounting of a vertical ladder with mounting angles.

Change of direction applicationImplementation of a change of direction with heavy-duty vertical ladder, type SLM.

Free-standing vertical ladder applicationMounting example for free-standing industrial vertical ladders, type SLS, fastened to the ceil-ing and floor.

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.

Illustration of vertical shaftIllustration of complete vertical ladder mounting.

Cover mounting, verticalMounting of the cover with spacer on a vertical ladder.

Rung seat fixed to IS 8 supportFastening of the rung seat, type SA, with profile rail, type MS 4022, in I support.

Rung seat fixed to steel girderDirect fastening (clamping) of the rung seat, type SAA, with profile rail, type MS 4022, on steel girder.

Fastening of C profile rungFastening of C profile rung, type CK 40, in indus-trial vertical ladders, type SLS 80.

Fastening of angle rungFastening of the angle rung, type WSK 40, in industrial vertical ladders, type SLS 80.

Ceiling fasteningFastening of a industrial vertical ladder, type SLS 80, to the ceiling using mounting angle, type BW.

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Industrial ducts and trunking

Walkable cable tray system BKRS 116

Metal cable duct LKM 120

AZ small ducts and BKK basic profile 124

Luminaire support systems 128

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System description

Walkable cable tray system BKRS

Optimised for worldwide use in systems construction and in the automotive industry with its automated production lines, the walkable cable tray system from OBO Better-mann is ready for any task. The non-slip, impact-resist-ant covers and the unperforated cable trays, type BKRS, which serve as the base, are ideally suited to the rough

and tumble of everyday work. Comprehensive accesso-ries, such as support profiles, Z-shaped barrier strips, end closure plates, dust protection, guard plate and all the fastening materials optimise this system for universal use and ensure a flexible system, which allows low-cost installations.

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1 BKRS cable tray2 Chequer plate cover3 Dust protection element4 Cover support5 Z-shaped barrier strip6 Reducer/stop-end

Protective panel for support bracket

7

11

Support profile

Protective panel for Z supports

8

12

Support bracket

Cover clamp

9

13

Z support

Cover lifter

10

14 Clamp spring for conductor cable and connection terminal

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Mounting aid

Stand-off with support profileMounting of the walkable cable tray system on Z support STP Z.

Mounting below the walkable cable tray sys-tem on support bracketsWhen mounted on support brackets, type STA, other media, such as hydraulic, pneumatic or water, can be laid under the walkable cable tray system. The rails of the support bracket allow the use of U clamps.

Mounting on Z supports, mounting below the walkable cable tray systemWhen mounting on Z supports, type ZST, other media, such as hydraulic, pneumatic or water, can be mounted under the walkable cable tray system. The protective panel, type SB ZST, is fastened to the Z supports using metal screws, type SPHS.

Installations when mounted on support brack-etsAssignment of the walkable cable tray with dif-ferent cables, separated by barrier strips. When mounted on support brackets, other media can be laid under the cable tray.

Mounting on support bracketsMounting of the walkable cable tray system on special support brackets, type STA BKS.

Straight connectionStraight connectors, type RLVL, are used to cre-ate a straight connection of the walkable cable tray system.

Direct floor mountingInstallation of the walkable cable tray system di-rectly on the ground with nail tie or bolt tie.

Stand-off applicationInstallation and fastening of the walkable cable tray system for floor stand-off using U profiles.

Stand-off with stand-off bracketMounting of the walkable cable tray system on stand-off brackets, type DBL.


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Releasing the coverThe cover clamps can be released from the ca-ble tray using a cover lifter.

Mounting protective panelThe protection panel type SB is fastened with drilling screws type BS to the support brackets and is designed to protect people, to prevent accidental stepping down from the walkable ca-ble tray system and therefore to avoid accidents.

Using the cover support for fittingsIf fittings are used, the additional cover support, type DST, is used which reliably prevents a sag-ging of the cover with larger dimensions. The cover support is fixed with screws in the bottom of the cable tray/the fitting.

Drilling templateThe cover lifter can be used as a drilling tem-plate to mark the hole for the connector.

Mounting of barrier stripThe barrier strip, type TSG, is screwed by means of truss-head bolts in the bottom of the cable tray. Depending on the width of the cable tray system, multiple barrier strips can be used. Here, the barrier strip also serves as a cover support.

Using universal connectorsThe universal connector has a wide range of in-dividual applications and can be used for both cross-overs as well as route installation.

Creating changes of direction 90°The cable trays are cut with appropriate tools so they lie flush against each other. Then they are pushed into each other and connected with angled straight connectors.

Cover mountingThe cover is mounted on the cable tray using the cover clamp.


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System description

Metal cable duct LKM

LKM metal cable duct has two areas of application. The stable system for the guidance and protection of cables is used in the field of machines and systems. The com-pleted system allows simple installation at a later date, also with pre-terminated connectors, offering reliable pro-tection against mechanical loads and soiling.

The LKM cable duct of type LKM 20030FS and 60100FS has also been tested as a cable-specific routing type for the maintenance of electrical function according to DIN 4102 Part 12.

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11 Cable brackets12 Duct clamp


1 Duct2 Duct clamp for the maintenance of electrical function3 Joint connector4 Internal corner5 External corner6 T piece7 Flat angle8 End piece9 Edge protection ring10 Partition

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Mounting aid

Wall duct mountingKnock-in anchors of type 910/SD can be used to fasten the LKM duct directly on the wall.

Partition mountingInsert the partition into the straps located on the floor. This guarantees equipotential bonding without any additional aids.

Internal corner mountingAs with the LKM duct, the fittings are mounted at the appropriate points.

Cable bracket mountingThe cable bracket is mounted using the duct fastening screw. The cables can be held using cable ties, type 555.

Joint connector mountingAfter installing the LKM duct, lock the joint con-nector into the parts to be connected from in-side. This guarantees the equipotential bonding between these two parts.

Installation of duct clampThe duct clamp is placed on the loop perfora-tion in the base and then locked into the cover contour. If a partition wall is also installed, the partition wall must be separated into sections.

Machines application areaIn the area of machines, the LKM metal cable routing duct is used to provide additional protec-tion for the cables.

Corridor, stairwell application areaThe stable LKM metal cable routing duct can be used anywhere, in which cables require me-chanical protection.

Machine duct mountingScrew the LKM metal cable routing duct to the machine, for example, using cylinder head bolts of type 341.

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Equipotential bondingEquipotential bonding is guaranteed between the cover and the base through the special cov-er contour. The LKM duct is earthed using the connection strap located in the base.

Edge protection ring mountingPlace the edge protection ring on the open ends of the LKM duct. It prevents damage to the ca-bles within.

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System description

AZ small ducts and BKK basic profile

The modular systems – the product range that knows no bounds. Exiting branches to individual consumers can be implemented with the AZ small duct. The BKK basic pro-file can be used as a cable link in chemical plants, where large distances and high cable loads must be bridged

safely with some fairly large support spacings. Electri-cal drives, such as motors, etc. are connected using the motor connection column. Thus, the modular system, to-gether with the individually combinable range of acces-sories, is the universal solution for any task.

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1 BKK basic profile2 AZ small duct3 Straight and angle connector4 Motor connection column5 Cover for motor connection column6 Device plate7 Edge protection ring

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Mounting aid

Straight connection of AZ small ductStraight connection of AZ small ducts with con-nectors of type VF AZK.

90° vertical bend, fallingMounting of a falling vertical bend with adjusta-ble connectors, type SV.

Cover fasteningMounting of the cover, type AZDMD, on an AZ small duct.

90° angle connectionAngle connection of AZ small ducts with con-nectors of type VF AZK.

90° vertical bend, risingMounting of a rising vertical bend with adjusta-ble connectors, type SV.

Mounting of motor connection column with fastening bracketFastening of the motor connection column, type MAS 140/10, to the wall using fastening brack-ets, type BF 140/10.

Vertical straight connectionVertical angle connection of AZ small ducts with two connectors of type VF AZK.

Side rail cable protection ringInsertion of the cable protection rings, type KSR-DR 910, in the side rail of the AZ small duct.

Device plate mountingMounting of the device plate, type GP, to the motor connection column.

BKK systemMounting of the BKK system under the ceiling using IS 8 supports.

Motor connection columnCoupling of electric drives to the motor connec-tion column.

AZ small ductExample of mounting the AZ small duct as sus-pension with threaded rod and the implementa-tion of horizontal-vertical transitions.

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BKK offset fastening variantPossible mounting variant of BKK profiles with offset joint. This mounting variant provides in-creased joint stability.

Angle connectionSimple bend creation with hinge connectors, type SV. For this, the side rails must be cut.

Joint connectionConnection of straight joints in the BKK system using the joint connector, type SSV.

Mounting of base profileMounting of the base profile in the BKK system.

BKK straight fastening variantPossible mounting variant of BKK profiles with straight joint.

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System description

Luminaire support systems

Whether in industry, in purpose-built buildings or in es-pecially attractive buildings, OBO luminaire support sys-tems simplify the installation of light systems in many are-as of industry and buildings. They are also be suitable for

flexible power and data supplies to machines and work-stations. The OBO luminaire support system makes ca-ble laying and the optimum positioning of lighting child‘s play for any possible application.

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1 Luminaire support tray2 90° bend3 45° bend4 Cover with turn buckle5 Suspension bracket6 Add-on tee7 Threaded rod8 Straight connectors and joint plate9 Cover10 Trapezoidal fastening

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Mounting aid

Straight connection of luminaire support trayHorizontal straight connection of the luminaire support rail, type LTS with straight and angle connector, type VF AZK.

Side rail cable protection ringInsertion of the cable protection rings, type KSR 910, in the side rail of the luminaire support rail.

Centre suspensionEfficient creation of centre suspensions. The lu-minaire support tray is fastened to the centre suspension without bolts.

Horizontal angle connectionHorizontal angle connection of the luminaire support rail, type LTS with straight and angle connector, type VF AZK.

Bottom cable protection ringInsertion of the cable protection rings, type KSR 915, in the bottom of the luminaire support tray.

Prewired luminaire supportsMounting of a pre-terminated luminaire beneath a luminaire support rail.

Vertical straight connectionVertical straight connection of the luminaire sup-port rail, type LTS, with two straight and angle connectors, type VF AZK.

Chain suspensionImplementation of a chain suspension for lumi-naire support systems with anchor, ceiling hook, type 948/TG6, and suspension chain, type LTK-K.

Mounting of luminaire support fittingMounting of luminaire support fittings by simple interconnection of fitting and luminaire support rail.

Luminaire support rail applicationSuspension of the luminaire support rail with chain and suspension bracket.

Luminaire support tray application Suspension of a luminaire support tray with cen-tre suspension MAH and threaded rod.

Straight connection of luminaire support trays Horizontal straight connection of the luminaire support tray, type LTR, with straight connector set, type RV 607.

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Support structures

Suspended supports and brackets 134

Universal systems 150

Cable support troughs 154

Clamp fastening systems 156

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System description

Suspended supports and brackets

The TP system is a range of light supports and brackets. This product range, which consists of TP suspended sup-ports and brackets, can be used universally as ceiling and wall mounting.

TP supports and brackets

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1 TP suspended support2 TP support/wall and support brackets3 Spacer4 End cap

TP supports and brackets

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Mounting aidTP supports and brackets

Ceiling mounting of TP wall and ceiling clampUniversal mounting of the TPD wall and ceiling clamp on the ceiling (with DS 4 spacer). Maxi-mum tray width 300 mm.

Mounting of TP suspended support with sin-gle-sided bracket fasteningCeiling mounting of a TP suspended support with spacer DS 4 and one-sided bracket mount-ing. Maximum tray width 300 mm.

Complete mounting of a TP systemMounting of the TP suspended support with head reinforcement and double-sided bracket mounting and mounting directly on the wall.


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System description

The perfectly matched U support family consists of US 3 (light-duty system), US 5 (medium-duty system) and US 7 (heavy-duty system). The U support range is particu-larly noted for its versatility. The U supports can be used as ceiling suspension, floor stand-off or as construction profiles.

U supports and brackets


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1 US 3 suspended support2 Spacer3 Wall and support bracket4 Head plate5 US 3 support6 U support connector7 End cap

U support US 3


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Installation principleU support US 5

1 US 5 suspended support2 Spacer3 Wall and support bracket4 Head plate5 US 5 support6 U support connector7 End cap


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Installation principleU support US 7

1 US 7 suspended support2 Spacer3 Wall and support bracket4 Heavy-duty head plate5 US 7 support6 U support connector7 End cap


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Mounting aidU supports and brackets

Wall bracket, variableFastening of the variable wall bracket, type AWV, with bolt tie to vaulted or sloping walls/ceilings.

Standard mounting of suspended support with wall and support bracket, double-sidedCeiling fastening of a suspended support with double-sided bracket mounting.

Adapter head plate, asymmetricalAsymmetrical head plate KA-ASY to increase the load capacity for the combination with sus-pended supports, type US 7 K and IS 8 K.

Standard mounting of suspended support with wall bracket, single-sided without spacerCeiling fastening of a suspended support with single-sided bracket fastening. A spacer is not always required for widths up to and including 300 mm.

Ceiling mountingStandard mounting of U suspended supports US 3 K, US 5 K and US 7 K on the ceiling with fastening of the wall and support brackets.

Adapter head plate, symmetricalSymmetrical head plate KA-SY to increase the load capacity for the conjunction with suspend-ed supports, types US 7 K and IS 8 K.

Standard mounting of suspended support with wall and support bracket, single-sided with spacerCeiling fastening of a suspended support with single-sided bracket fastening. For widths of over 400 mm, we recommend using a spacer.

Head plate mountingMounting of the standard head plate on support and ceiling. Use with spacer DSK 25 (US 3), DSK 45 (US 5) or DSK 61 (US 7).

TraverseMounting of U suspended supports US 3 K, US 5 K and US 7 K under the ceiling using bolt ties and a trapeze, consisting of U profile US 3, US 5 or US 7.

Wall mountingDirect fastening of wall and support brackets of type AW... on the wall.

Quick fastening of cable tray on bracketPositioning the cable tray on the bracket.

Quick fastening of cable tray on bracketFixing of the cable tray on the bracket using quick fastening.


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Variable head plate with US 3 supportMounting of the variable head plate, type KU 3 V on US 3 support.

45° adapter plate, concrete mountingMounting of the 45° adapter plate, type KA-E 45, on a concrete wall. For additional support and implementation of tray routes at angles and room corners.

Variable head plateFastening of the variable head plate KU 5 V to sloping concrete ceilings using bolt ties and spacer DSK 47.

45° adapter plate, steel clampingMounting of the 45° adapter plate, type KA-E 45, on the steel girder using clamping angles or chuck jaws. For additional support of routes in angles and at room corners.

Variable head plateFastening of the variable head plate KU 7 VQP to sloping concrete ceilings using bolt ties and spacer DSK 45.

Direct girder clampingDirect girder clamping of a U suspended sup-port using KWS clamping angle. Route in longi-tudinal direction of steel girder.

U support wall mounting U supports are mounted on walls or girders us-ing bolt ties, directly through the system perfora-tion in the U support.

U support connection To connect U supports, use the appropriate U support connectors, types VUS 3, VUS 5 and VUS 7.

Mounting of spacerMounting of the spacer DSK 47 with US 5 sup-ports or DSK 45 with US 7 supports in conjunc-tion with a variable head plate KU 5 V or KU 7 VQP.


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Cantilever beam on steelU supports can be used as cantilever beams on steel girders with chuck jaws of type TKS-L-25. Use DSK spacers for safe functioning.

Clamp fastening of heavy-duty bracketsClamp fastening of a heavy-duty bracket with clamping angles or chuck jaws on a vertical steel girder.

Steel clamping with C profile, route in longitu-dinal directionU suspended support mounting, clamped to steel girder with C profile, type MS 4022, and TKH-L-25 light-duty chuck jaw. Route along steel girder.

Steel clamping with C profile, route in trans-verse directionU suspended support mounting, clamped to steel girder with C profile, type MS 4022, and TKH-L-25 light-duty chuck jaw. Route transverse to steel girder.

Head plate mountingInstallation of the head plate using the example KU 7 AOX for direct welding on steel girders.


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System description

The I support system from OBO Bettermann really comes into its own in situations where high loads must be car-ried, large distances must be bridged and difficult routes must be implemented. The I support system fulfils all the requirements of a heavy-duty mounting system. The high load capacities of all the system components permit the mounting of complex structures. The comprehensive range of head plates allows the implementation of all

conceivable solutions. This heavy-duty system is used with large support spacings of wide span systems or for multi-layer set-ups of standard cable trays and cable lad-der systems. The combination of I supports and support brackets of type AS 15, AS 30 and AS 55 form a per-fectly matched product range, the height of which can be infinitely adjusted.

I supports and brackets


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1 I suspended support2 Carrier lug3 Support bracket4 Head plate5 I support6 I support connector7 End cap8 Mounting angle

I supports and brackets


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Mounting aidI supports and brackets

Variable head plateMounting of the variable head plate, type KI 8 VQP, to sloping concrete ceilings using bolt ties.

Adapter head plate, asymmetricalAsymmetrical head plate KA-ASY to increase the load capacity for the combination with sus-pended supports, types US 7 K and IS 8 K.

Special structureExample of the mounting of a special structure, consisting of I supports (ceiling/wall mount-ing) with transverse profile and various support brackets, type AS.

I support connectionMounting of the I support connector VIS 8 to connect IS 8 supports.

Adapter head plate, symmetricalSymmetrical adapter head plate KA-SY to in-crease the load capacity for the conjunction with suspended supports, types US 7 K and IS 8 K.

Application on steel girderClamp fastening of suspended supports on steel girders using various chuck jaws, length-wise or transverse to the steel girder.

Bracket mountingMounting of a three-layer cable support system on the concrete ceiling using support bracket mounting AS 15, AS 30 and AS 55.

Wall fastening, I supportMounting of an I support on the wall using fas-tening brackets, type BW 80/55, and bolt ties to accept multiple support brackets, type AS.

Direct girder clampingDirect girder clamping of an I suspended sup-port with heavy-duty chuck jaw, type TKS-S-30. Route in longitudinal direction of steel girder.

Application on the ceilingStandard mounting of suspended supports to concrete ceilings using bolt ties.

Head plate mountingFastening of the standard head plate, KI 8, for I suspended supports to concrete ceilings using bolt ties.

Head plate, variable (rotated through 90°)Mounting of the variable head plate, type KI 8 VLK, rotated through 90°, to sloping concrete ceilings using bolt ties.


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Steel clamping with C profile, route in longitu-dinal directionI suspended support mounting, clamped to steel girder with C profile and TKH-L-25 chuck jaw. Route along steel girder.

Steel clamping with C profile, route in trans-verse directionI suspended support mounting, clamped to steel girder with C profile and TKH-L-25 chuck jaw. Route transverse to steel girder.

Head plate, variable (transverse)Mounting of the variable, transversely adjustable head plate, type KI 8 VLP, on rising or falling steel structures with profile rail, type MS 5030, and clamping angles, type KWH.


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System description

Universal systems

Universal systems for cable support structures are used for small loads. Whether the installation is to be a ceiling fastening, wall fastening or a floor stand-off: In the uni-versal systems, you can find functional fastenings with matching system accessories for any application.These suspension systems, which can be called basic installations, include centrally loaded ceiling clamps or

trapezoidal fastenings, which are used with threaded rods and centre suspensions. When using centre sus-pensions, the load should be even on both sides of the system. If an even load cannot be guaranteed, then other systems should be used.

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Universal systems

1 Ceiling bracket2 Trapezoidal fastening3 Threaded rod4 Centre suspension5 Suspension clamp6 Stand-off bracket7 Stand-off bracket

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Mounting aid

Universal systems

Mounting of centre suspensionInsertion and alignment of the centre suspen-sion MAH in the cable tray.

Trapezoidal plate applicationSimple, quick fastening of a cable support sys-tem to trapezoidal metal roofs.

Threaded rod suspension RKSM > 400 mmThe threaded rod suspension of RKSM ca-ble trays > 400 mm can take place using two threaded rods.

Mounting of trapezoidal suspensionMounting of a cable tray on a trapezoidal ceiling using the trapezoidal fastening, type TPB 100 and centre suspension, type MAH 60. Maximum cable tray width 300 mm. The trapezoidal fas-tening is mounted using the lock, type TPB R.

Cable ladder centre suspension with threaded rodMounting of a cable ladder with centre suspen-sion MAHU and a threaded rod.

Threaded rod suspension withsuspension clampCeiling mounting of a cable tray with AHB sus-pension clamp and threaded rod 2078/M10. Maximum cable tray width 400 mm.

Mounting of centre suspensionMounting of the centre suspension MAH 60 on the ceiling using threaded rod 2078/M10 and ceiling bracket 12050. Maximum cable tray width 300 mm.

Universal mounting on the ceilingThe variable ceiling bracket, type DBV, allows threaded rod suspensions on straight and slop-ing ceilings.

Centre suspension with threaded rodDirect centre suspension at low loads of a cable tray with threaded rod 2078/M10.

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Universal systems

Floor fastening at a distanceMounting of a cable tray at a distance using the DBL stand-off bracket. Maximum cable tray width 600 mm.

Stand-off of mesh cable traysFloor stand-off of mesh cable trays with the stand-off bracket, type DBLG 20/... Screwless fastening of the mesh cable tray on the stand-off bracket using clamping lugs.

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System description

Cable support troughs

Cable support brackets are used for quick and easy rout-ing of cables in areas where conventional cable support systems cannot be installed due to lack of space. The cable support brackets have a large load-bearing surface and rounded outer edges to protect the cables.

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Mounting aid

Cable support troughs

Factory pre-assembled cable carrier trays help in a fast installation.

Cable carrier trays for single installation to serve a flexible connection of cables.

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System description

Clamp fastening systems

The beam clamp systems with reduced installation times and work are a clear argument for the use of this system in all areas of professional electrical installations. Beam clamps can be attached without difficult, often unpermit-ted drilling. The load range runs from light-duty clamping angles to heavy-duty chuck jaws.

The clamping lugs/clamping angles, type KL, KWH and KWS, and the chuck jaws, type TKH and TKS, permit excellent connections without drilling or welding, on ac-count of the perfect matching to additional system arti-cles.

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1 Chuck jaw, heavy duty2 Chuck jaw, light duty3 Profile rail4 Clamping angle5 Beam clamp, horizontal6 Beam clamp, vertical

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Direct girder clampingDirect girder clamping of an I suspended support using chuck jaw (heavy duty), type TKS-S-30. Route along steel girder.

Cantilever beam on steelMounting of U support as cantilever beam on steel girder. Fastening with clamping angles or chuck jaws depending on load. Fastening with spacers, type DSK.

Clamp fastening with additional C profileUse of an additional C profile rail, type MS, for wider steel girders. Route along steel girder.

Cantilever beam with suspended supportCantilever beams made of U support construc-tion clamped to steel girder for mounting sus-pended supports.

Clamping transverse to steel girderUse with two C profile rails for route mounting transverse to the steel girder.

Clamp fastening on verticalsteel girderMounting of the adapter plate, type KA-AW, on the vertical steel girder using clamping angles or chuck jaws. Wall brackets of type AW are fas-tened to the adapter plate, using the hexagon head screw, type SKS 12x40 GF.

Application on horizontal steel girderClamp fastenings using clamping angles and chuck jaws on horizontal steel girders.

Application on sloping steel girderClamp fastenings using clamping angles and chuck jaws on sloping steel girders.

Steel clamping, C profile railFastening of a C profile, type MS 4022 or MS 5030, to steel girder using clamping angles, type KWS.

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Horizontal clamp fasteningMounting of AZ small duct using BFK fixing clamp in a longitudinal direction on the steel girder. Maximum cable tray width 100 mm.

45° adapter plate, steel clampingMounting of the 45° adapter plate, type KA-E 45, on the steel girder using clamping angles or chuck jaws. For additional support of routes in angles and at room corners.

Vertical clamp fasteningClamp fastening of a heavy-duty bracket with clamping angles or chuck jaws on a vertical steel girder.

Vertical clamp fasteningMounting of a mesh cable tray vertically on a steel girder, mounting with a fixing clamp BFK and hold-down clamp GKS 50.

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Power supply units

Power supply units VH/VHF 162

Industrial service poles 168

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System description

Power supply units VH/VHF

Suspended energy distributors for workplaces and machines in industry, the trades and in training areas. The power supply units can be positioned freely in the room. The supply comes from the ceiling. They can be equipped flexibly from power, data and media technology through to work media such as compressed air.

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Robust and trusted


The housings of the power supply units are made of high-ly resistant polyamide and offer installation space for 4 to 8 installation devices. This means that power supply units provide connections for work media directly and safely at the workplace.

Cables are inserted in the power supply units via penetra-tion sleeves. Integrated strain relief options in the housing ensure standardised installation. The suspension of the power supply units takes place in a fixed manner with a chain, with a spring or ergonomically with the positioner.

Modul 45® socketsUp to two Modul 45® sockets can be installed on each connection side of the power supply unit. Different cir-cuits can be installed in the housing. The entire product range of international sockets is available.

Compressed airThe compressed air connection to the power supply unit is designed for compressed air hoses 13 x 3.5 mm. The hose connection is fixed and locked using a hose clip. The power supply unit is equipped with a 2-way distrib-utor ½”.

Data technology and multimediaThe entire Modul 45® range of data and multimedia tech-nology is suitable for the network connection of machines and systems and in seminar and training rooms.

CEE connection unitCEE 16 A and CEE 32 A sockets can be installed in the power supply units.

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Mounting aid


VHF device installation – IP44 socketThe IP44 socket is inserted and locked into the appropriate cover plate. After connecting the ca-ble, place the cover plate on the housing and fix it using screws.

Compressed air connectionThe compressed air connection is designed for compressed air hoses 13 x 3.5 mm. The hose connection is fixed and locked using a hose clip.

Installation with tension springWith additional installations with a tension spring, always ensure flexible cable routing. The tension spring is usually used with compressed air for VH units and inserted directly in the fas-tening seat.

VH device installation – Modul 45®

The Modul 45® devices are inserted and locked into the appropriate cover plate. After connect-ing the cable, place the cover plate on the hous-ing and fix it using 2 screws.

Cable entryCables are inserted using the pre-punched openings in the housing cover. Correct strain relief is achieved using the cable terminals inte-grated in the housing.

VH device installation – support ring (EKR)After cable connection, accessories with a sup-port ring are screwed directly into the housing. The cover plate is fastened by mounting the central plate.

Installation with knotted chainMounting with a knotted chain is a rigid installa-tion and does not require any additional cable reserves. Shorten the knotted chain to the re-quired length and fasten it using the pre-mount-ed eyelet on the housing cover.

VH/VHF device installation – extension acces-soriesFasten extension accessories for the 38 x 38 mm fastening system to the appropriate cover plate using the screws supplied. After connect-ing the cable, place the cover plate on the hous-ing and fix it using fastening screws.

VH/VHF device installation – CEEThe connection of cables to a CEE connection unit must be carried out using a pre-mounted cover plate. During device mounting, the cover plate is fastened using 4 fastening screws.

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VHF device installation – protection deviceIn the first step, the appropriate support is pre-mounted using a PE terminal strip or N and PE terminal strip in the upper half of the housing. For this, the inner part of the fastening tracks must be completely removed.

VHF device installation – protection deviceIn the second step, the support bracket for the power supply unit is mounted in the lower half of the housing. Then the devices are connected and installed.

VHF device installation – protection deviceIn the third step, the transparent cover is placed on the cover plate and fastened with 4 screws. After that, mount the cover plate onto the equipped housing side using 4 screws.

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Power supply unit with increased IP protectionThe VHF8 power supply unit is specially designed for use in moist and wet areas. In the unused state, the hous-ing equipment and the devices offer a protection level of IP44 (protected against spray water).

Through the installation of up to 4-pole protection devic-es, workstations can be protected appropriately and in a decentralised manner.

Pre-terminated power supply unitsFor a quick and easy ordering process, pre-terminated power supply units are available for standard applica-tions, with and without compressed air connections. The sockets are already prewired and tested in the housing. The cable connection is quick and easy and uses pre-pared screw terminals.

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VH and VHF empty housing – freely configurable


Equipment VH4 and VH8The VHF power supply units are available as an empty housing for 4 (type VH4) or 8 (type VH8) connection sides for installation devices. The empty housings are offered with and without compressed air connec-tions.

The standardised cover plates can be used in VH4 and VH8 and allow the instal-lation of Modul 45®, extension sockets with hinged lids, standard installation devices (with 50 mm central plate) and CEE con-nection units.

Equipment VHFThe VHF power supply units are available as an empty housing for 8 installation de-vices. The empty housings are offered in versions with and without compressed-air connections.

Special cover plates for increased IP pro-tection are available for the VHF. The spe-cial cover plates for VHF allow the installa-tion of extension sockets with hinged lids, CEE connection units and decentral pro-tection devices.

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System description

Industrial service poles

Our industrial service poles combine power, data and compressed air connections in a compact and sturdy manner. This makes changes of location, for example when adjusting production processes, particularly quick

and easy. Thanks to the modular set-up, it is easy to equip the service pole according to the new requirements. The ISS basic profile is fully compatible with all known item MB Building Kit Systems.

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ISS basic profile


1 System opening

2 Flexible use

3 Channel rail

4 Compressed air tap

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Device installationISS industrial poles can be equipped with practically stand-ard systems. The 76.5 mm-wide system opening is ready for the installation of:• Switching and connection devices• CEE connection units 16 A/32 A• Data technology• Series-mounted devices

InstallationThe channel rail enables, using item slot nuts, the attach-ment of:• Monitors• Keyboards• Reading, transmitting and receiving equipment• Fixed or flexible pipelines for compressed air or gases

In order to be able to install cables and wires of differ-ent voltage levels, it is possible to divide the installation space with a partition.

Tap to take off compressed air from the pole profile. The compressed air tap can be mounted onto the pole profile using slot nuts and fastening screws.

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Stand and ceiling fasteningA solid stand to be fastened to the floor ensures secure mounting. A solid ceiling fastening at the top can easily be adjusted to different heights.


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Mounting in the system openingThe 76.5 mm system opening accommodates accesso-ry mounting sockets of the series 71GD... In addition to standard systems from other manufacturers, the com-plete OBO product range stands ready for installation of:

• Switching and connection devices • CEE connection units• 16 A/32 A• Data technology from all manufacturers • Multimedia (audio, video, VGA, XLR, etc.) • IKR4 and IKR6 series-mounted devices • Pre-terminated “plug and play” solutions with ready-to-

connect connection cables

Mounting in the channel railThe service pole has one channel rail to every side, aligned to the established item grid dimensions. This means, there are no limitations with regards to adapting all kinds of different expansion elements and integrat-ing the poles into machine and plant constructions. The channel rail provides the option to attach:

• Monitors • Keyboards • Reading, transmitting and receiving equipment • Fixed or flexible pipelines for compressed air or gases


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Connection to cable support systemsUsing the appropriate brackets, cable ladder and cable tray systems can be at-tached to the pole easily and securely.

Connection to a walkable cable trayWith our walkable cable tray systems, pow-er and data can be fed into service poles.


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Wiring ducts and trunking

Wiring ducts and trunking 176

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System description


An exceptionally large range of products in the usual high quality: Wiring ducts and trunking ensures tidy wir-ing in a switchgear cabinet. All the duct is made from lead-free material. And, for optimum safety, a selection of halogen-free duct is available from our range.

For professional wiring installation, Wiring ducts and trunking in dimensions between 15 x 15 mm and 100 x 100 mm is available. A soft, burr-free slot and round-ed tabs make mounting easier and also prevent injuries. Upon request we can also offer special designs.

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Precise measurements and tested quality


The LK4 and LK4/N as well as the LKV and LKV/N duct systems have exactly predetermined points for easy breaking-out of the side retainers. All types have, de-pending on their size, single or dual-track perforation to their base. Tapering in the side slots of the LK4/N and LKV/N types prevents the cables from falling out.

The Wiring ducts and trunking is VDE-tested and UL-list-ed (UL File E301798).

LK4 and LK4/NOBO offers the LK4 Wiring ducts and trunking in the measurements from 15 x 15 mm to 80 x 120 mm. Pre-cise processing enables simple attaching and detaching of the cover while, at the same time, ensuring a firm fit.

LKV and LKV/NThe special cover contour also guarantees a perfect fit on the LKV Wiring ducts and trunking. In the dimensions from 25 x 25 mm to 100 x 100 mm (DIN EN 50085- 2-3), it caters for any size requirement.

LKV/HThe LKV/H Wiring ducts and trunking is halogen-free and available in eight different sizes from 50 x 37.5 mm to 75 x 125 mm.

Upon request we can also offer customised solutions:• Starting dimension of the base perforation can be ad-justed variably• Available without base perforation• Special lengths• Special colours

1 Stable duct with high-quality thicknesses

2 Exact predetermined breaking points in the strut and base area

3 Soft, burr-free slot, rounded tabs

4 Absolute dimensional accuracy of the side perfora-tion and base perforation

5 Cut edges rounded and deburred in the closing area

6

7

Secure positioning of the covers through optimum closing contours

Wire retaining nose allows wiring without wire re-taining clamp

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Mounting aid


Wire retainersThe wire retainers can be adjusted according to the duct width. To do this, simply break off the wire retainer at the predetermined breaking points. This means that just one wire retainer is necessary for any duct width.

Cover contour LK4True to size processing enables easy mounting and removal of the cover, despite a firm cover fit.

Wire retainer mountingThe wire retainer is inserted into the side slot of the VK Wiring ducts and trunking. This sim-plifies cable installation and keeps the cables in place in the VK Wiring ducts and trunking. It also guarantees easy attachment of the cover. If installations are required at a later date, then, when the cover is removed, the cables are held in the duct and do not fall out.

Cover contour LKVThe special cover contour also guarantees a perfect fit on the LKV Wiring ducts and trunking.

Wire holding lugsIn the N versions, there is a holding lug on the side retainer, allowing fixing of the cables in the VK Wiring ducts and trunking.

Mounting of spacersThrough the mounting on spacers, it is possible to install the VK Wiring ducts and trunking at a distance to the mounting plate.

Mounting of the Wiring ducts and trunkingThe VK Wiring ducts and trunking is fastened to the mounting plate of the switching cabinet using spreading rivets. The spreading rivets are installed using the plastic rivet tool.

Break-out of retainersThe retainers are bent outwards. When a bend angle of approx. 70–80° is exceeded, they break.

Release pliersThe side retainers can be removed down to the base of the duct using the release pliers. When the side retainers have been broken out, there is no loss in volume in the transition area to the next duct piece.

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Spacer mountingThe spacers can be connected one on top of the other to allow greater distance to the mount-ing plate. This allows a certain amount of height variation for any cables to be routed behind the VK Wiring ducts and trunking.

Base perforationSingle and dual-track base perforation to DIN 43659 enable precise work.

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Hole patterns and dimensions


57,512,5

1

4610

2

LKV

LK4

VK and VKH Wiring ducts and trunking always starts and finishes – with regards to one delivery length (2,000 mm) – with half a small fastening hole (4.5 x 8 mm).

LK4/LK4/N Item no. Hole patternLK4 15015 6178001 2

LK4 30015 6178003 2

LK4 30025 6178005 3

LK4 40025 6178010 3

LK4 40040 6178012 3

LK4 40060 6178014 3

LK4 40080 6178016 1

LK4 40100 6178018 1

LK4 60015 6178026 2

LK4/N 60015 6178201 2

LK4 60025 6178028 3

LK4/N 60025 6178203 3

LK4 60040 6178031 3

LK4/N 60040 6178205 3

LK4 60060 6178033 3

LK4/N 60060 6178207 3

LK4 60080 6178035 1

LK4/N 60080 6178209 1

LK4 60100 6178037 1

LK4/N 60100 6178211 1

LK4 60120 6178039 1

LK4/N 60120 6178213 1

LK4/LK4/N Item no. Hole patternLK4 80025 6178050 3

LK4/N 80025 6178225 3

LK4 80040 6178052 3

LK4/N 80040 6178227 3

LK4 80060 6178054 3

LK4/N 80060 6178229 3

LK4 80080 6178056 1

LK4/N 80080 6178231 1

LK4 80100 6178059 1

LK4/N 80100 6178233 1

LK4/N 80120 6178236 1

LK4/N 80120 6178236 1

LK4/N 80120 6178236 1

LKV/H Item no. Hole patternLKV/H 50037 6178612 2

LKV/H 50050 6178614 2

LKV/H 50075 6178616 2

LKV/H 75037 6178622 2

LKV/H 75050 6178624 2

LKV/H 75075 6178626 1

LKV/H 75100 6178628 1

LKV/H 75125 6178630 1

LKV/LKV/N Item no. Hole patternLKV 25025 6178302 3

LKV 37025 6178305 3

LKV 37037 6178307 3

LKV 50025 6178310 3

LKV 50037 6178312 3

LKV 50050 6178314 3

LKV 50075 6178316 1

LKV/LKV/N Item no. Hole patternLKV 75025 6178320 3

LKV/N 75025 6178420 3

LKV 75037 6178322 3

LKV 75037 6178422 3

LKV 75050 6178324 3

LKV/N 75050 6178424 3

LKV 75075 6178326 1

LKV/N 75075 6178426 1

LKV 75100 6178328 1

LKV/N 75100 6178428 1

LKV 75125 6178330 1

LKV/N 75125 6178430 1

LKV 10037 6178334 3

LKV/N 10037 6178435 3

LKV 10050 6178336 3

LKV/N 10050 6178437 3

LKV 10075 6178338 1

LKV/N 10075 6178439 1

LKV 100100 6178341 1

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Dimensions LK4

Dimensions, LK4 Wiring ducts and trunking


Dimensions LK4

Item no. Type Item no. Type Dimension a mm DimensionA mm Dimension B mm Dimension h mm Dimension

H mm6178001 LK4 15015 15 17 20 15 17

6178003 LK4 30015 15 17.8 20 30 32.4

6178005 LK4 30025 25 28.6 31 30 32.8

6178010 LK4 40025 25 28.6 31 40 42.8

6178012 LK4 40040 40 43.6 46.2 40 43

6178014 LK4 40060 60 64 66.4 40 43.2

6178016 LK4 40080 80 84 87 40 43.5

6178018 LK4 40100 100 104 107.4 40 43.7

6178026 LK4 60015 6178201 LK4 N 60015 15 18.6 20 60 62.8

6178028 LK4 60025 6178203 LK4 N 60025 25 29 31 60 63

6178031 LK4 60040 6178205 LK4 N 60040 40 44 46.2 60 63

6178033 LK4 60060 6178207 LK4 N 60060 60 64 66.4 60 63.2

6178035 LK4 60080 6178209 LK4 N 60080 80 84.4 87 60 63.7

6178037 LK4 60100 6178211 LK4 N 60100 100 104.6 107.4 60 64

6178039 LK4 60120 6178213 LK4 N 60120 120 124.6 127.8 60 64.2

6178050 LK4 80025 6178225 LK4 N 80025 25 29.4 31 80 83.2

6178052 LK4 80040 6178227 LK4 N 80040 40 44.4 46.2 80 83.3

6178054 LK4 80060 6178229 LK4 N 80060 60 64.4 66.4 80 83.4

6178056 LK4 80080 6178231 LK4 N 80080 80 84.6 87 80 83.9

6178059 LK4 80100 6178233 LK4 N 80100 100 104.8 107.4 80 84.1

6178061 LK4 80120 6178236 LK4 N 80120 120 124.8 127.8 80 84.3

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Anchors and fastening systems

General information 184

Metal spreading anchor 186

Injection anchor 190

Bolt ties 192

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Tightening torques

General information

Different tightening torques apply when mounting a cable support system. Please note that the specified torques are only intended as rough, non-binding guide values (see VDI 2230)!

Tightening torques of bolts with metric thread made of steel

Tightening torques of bolts with metric thread made of stainless steel

Tightening torques of bolts with metric thread

Thread Grade 5.6 Grade 6.9 Grade 8.8 Grade 10.9 Grade 12.9M6 3.9 Nm 8.5 Nm 10 Nm 14 Nm 17 Nm

M8 9.8 Nm 21 Nm 25 Nm 35 Nm 41 Nm

M10 19.6 Nm 41 Nm 49 Nm 69 Nm 83 Nm

M12 33.4 Nm 72 Nm 86 Nm 120 Nm 145 Nm

M14 54 Nm 115 Nm 135 Nm 190 Nm 230 Nm

M16 82 Nm 180 Nm 219 Nm 295 Nm 355 Nm

M18 114 Nm 245 Nm 290 Nm 400 Nm 485 Nm

M20 163 Nm 345 Nm 410 Nm 580 Nm 690 Nm

Tightening torques of bolts with metric thread made of stainless steelThread Resistance grade 50 Resistance grade 70 Resistance grade 80M6 3.8 Nm 8.2 Nm 10.9 Nm

M8 9.2 Nm 19.6 Nm 26.2 Nm

M10 19 Nm 39 Nm 53 Nm

M12 31 Nm 67 Nm 89 Nm

M14 50 Nm 106 Nm 142 Nm

M16 76 Nm 162 Nm 216 Nm

M18 105 Nm 225 Nm 299 Nm

M20 148 Nm 316 Nm 422 Nm

Tightening torques of bolts with metric thread

Thread Grade 5.6 Grade 6.9 Grade 8.8 Grade 10.9 Grade 12.9M6 3.9 Nm 8.5 Nm 10 Nm 14 Nm 17 Nm

M8 9.8 Nm 21 Nm 25 Nm 35 Nm 41 Nm

M10 19.6 Nm 41 Nm 49 Nm 69 Nm 83 Nm

M12 33.4 Nm 72 Nm 86 Nm 120 Nm 145 Nm

M14 54 Nm 115 Nm 135 Nm 190 Nm 230 Nm

M16 82 Nm 180 Nm 219 Nm 295 Nm 355 Nm

M18 114 Nm 245 Nm 290 Nm 400 Nm 485 Nm

M20 163 Nm 345 Nm 410 Nm 580 Nm 690 Nm

Tightening torques of bolts with metric thread made of stainless steelThread Resistance grade 50 Resistance grade 70 Resistance grade 80M6 3.8 Nm 8.2 Nm 10.9 Nm

M8 9.2 Nm 19.6 Nm 26.2 Nm

M10 19 Nm 39 Nm 53 Nm

M12 31 Nm 67 Nm 89 Nm

M14 50 Nm 106 Nm 142 Nm

M16 76 Nm 162 Nm 216 Nm

M18 105 Nm 225 Nm 299 Nm

M20 148 Nm 316 Nm 422 Nm

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Screw lock

General information

The components listed below are now considered to be ineffective screw locks, as the corresponding standards have been withdrawn. They are therefore not permitted as the sole safety devices for strength classes ≥ 8.8.

Withdrawn standards:Spring lock washers (DIN 127, DIN 128 and DIN 6905)Wave spring washers (DIN 137 and DIN 6904)Toothed discs (DIN 6797)Serrated washers (DIN 6798)Locking plates (DIN 93, DIN 432 and DIN 463)Safety cups (DIN 526)Locking nuts (DIN 7967)Castle nuts with split pin (DIN 937)

All specified standards have now been withdrawn, however these components can often still used as “captive prevention”! Captive protection devices pre-vent a screw connection from being completely un-screwed, but not from loosening.

At OBO Bettermann, individual products, such as hex-agonal bolts with washer and nut, continue to be sold as a complete package, as these are used for electrical contact to surrounding metallic components.

Our systems are generally not exposed to dynamic loads that require screw locking.

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System description

Metal spreading anchor

The majority of metal spreading anchors from OBO Bet-termann have a European Technical Assessment ETA. Some versions have shock approval from the Federal Of-fice for Civil Protection in Bern, Switzerland. Most metal spreading anchors have also been tested in terms of fire protection for a fire resistance time of up to 120 minutes. You can find detailed information regarding the permit-ted loads (also in the event of a fire) and the installation conditions that must be observed in the corresponding approvals.

System benefits:• Wide range of application areas thanks to a variety of

versions, load classes and material qualities • Quick and easy installation • High tensile loads and shear loads • Small edge and axis spacings • Can be used indoors and outdoors (depending on ma-

terial)

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Mounting aid


Drilling an anchor holeDrilling of the anchor hole according to the an-chor approval information for the drill hole diam-eter and the drill hole depth.

Blowing out of the drill hole in the ceilingRemoving dust from the drill hole by blowing it out several times.

Mounting of threaded rod BZ-IGMounting of a threaded rod into the bolt tie BZ-IG. The direct mounting of a component with a hexagonal bolt is also possible.

Blowing out of the drill holeRemoving dust from the drill hole by blowing it out several times.

Placing the bolt tie BZ-IGThe bolt tie BZ-IG is placed on the setting tool BZ-IGS. It must be ensured that the thread size of the setting tool fits to the corresponding bolt tie.

Application of the torque BZ-IGFastening of the threaded rod by tightening the hexagonal nut with the torque specified in the approval.

Drilling an anchor hole in the ceilingDrilling of the anchor hole in the ceiling accord-ing to the anchor approval information for the drill hole diameter and the drill hole depth.

Knocking in of the bolt tie BZ-IGKnocking in of the bolt tie BZ-IG with the appro-priate setting tool. Then the component to be mounted can be fastened.

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Nail tie, type N, with threaded connectionNail tie, type N, with M6 threaded connection, usable in cracked or non-cracked standard con-crete C20/25 to C50/60.

Bolt tie, type BZ-IGThe bolt tie BZ-IG with internal thread is approved for normal drill holes which are not undercut. Within the scope of the European Technical Assessment ETA- 99/0010 for cracked and non-cracked concrete, a system comprising nut and washer and a standard threaded rod can be used, as well as hexagonal bolts and countersunk head screws.

Hollow core anchor, type EasyHollow core anchor, type Easy, with M6, M8, M10 and M12 internal thread, for use in stressed concrete core slab ceilings.

Nail tie, type N-K, with drive-in headNail tie, type N-K with drive-in head, usable in cracked or non-cracked standard concrete C20/25 to C50/60.

Impact tie, type ESImpact tie, type E, with M6, M8, M10, M12 in-ternal thread. To accept small loads, approved for multiple fixings in cracked and non-cracked concrete of non-load-bearing systems.

Bolt tie, type BZBolt tie, type BZ, for fastening heavy- duty anchorings in cracked or non-cracked standard concrete C20/25 to C50/60, suitable for push-through mounting, with M8, M10, M12 or M16 thread.

High-load anchor, type SZHigh-load anchor, type SZ, with M12 thread connection for fastening components with high loads, approved for cracked and non-cracked standard concrete C20/25 to C50/60.

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System description

Injection anchor

The VMS Plus injection mortar system is particularly suit-able for fire-protection fastening in hollow brick, concrete, calcareous limestone, sand-lime brick and masonry. The non-spreading connection is created through the use of the plastic wire sleeve and a threaded anchor rod. The components are tested and approved for a fire resistance period of 90 minutes.

The maximum load capacity depending on the fire resist-ance period and the fastening substrate is documented accordingly in the available fire protection certificate. Al-though the load capacity of the injection mortar system is below the load capacity when cold, it is completely suffi-cient for fireproof fastening of the various components of the different routing types.

System benefits:• Injection tie tested and approved for fire • Determined load capacity according to fire resistance

period • Use in calcareous limestone, masonry, hollow brick

and sand-lime brick • Various dimensions for the different routing compo-

nents and applications • Proven fastening with plastic wire sieve sleeves

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Mounting aid

Injection anchor

DrillingCreation of a drill hole with a suitable diameter.

Application of the injection mortarPressing of the injection mortar into the drill hole.

Applying the injection mortarPress in the injection mortar from the cartridge from the base of the drill hole to the opening. In so doing, draw the point back slowly.

Cleaning of the drill holeBlowing out of the drill hole for cleaning with a hand-held blower or compressed air.

Use in hollow brickDrill the hole in the hollow brick according to the selected anchor size and then clean it.

Inserting the anchor rodAttach the anchor rod in the filled wire sleeve up to the set marking. The mortar pushes through the openings of the wire sleeve, forming a clo-sure.

Mounted component, hollow brick wallMounting the component with a washer and nut on a hollow brick wall. Comply with the tighten-ing torque in the approval.

Cleaning with steel wire brushMechanical cleaning of the drill hole with steel wire brush. The cleaning process with blowing and brushes must be carried out twice.

Mounting preparationsInsert the fitting plastic sieve sleeve in the drill hole.

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System description

Bolt ties

Wedge anchors MMS, MMS-ST and HMS-KS from OBO Bettermann offer optimum fastening options in solid ma-sonry types. The various dimensions and head shapes provide installation options for the different routing com-ponents. The wedge anchors are screwed directly into the drill hole. There is no need for an additional anchor. No spreading forces develop and mounting near mason-ry edges is not required. You can find detailed informa-tion in the corresponding approvals.

System benefits:• Quick and easy installation • High level of safety• Can be loaded immediately • Torque control not required • Mechanical setting is possible without any problems • Fire protection-tested

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Mounting aid

Bolt ties

Drilling an anchor holeDrilling of the anchor hole according to the an-chor approval information for the drill hole diam-eter and the drill hole depth.

Bolt tie, type MMS-plusBolt tie MMS-plus with hexagonal head for direct mounting without additional anchors. Suitable for use in concrete and different types of ma-sonry.

Blowing out of the drill holeRemoving dust from the drill hole by blowing it out several times.

Bolt tie, type MMS-STBolt tie MMS-ST with M6 thread and hexagonal head for direct mounting without additional an-chors. Suitable for use in concrete and different types of masonry.

Bolt tie, type MMS-plus bolt tieMMS-plus with pan head for direct mounting without anchors. Suitable for use in concrete and different types of masonry.

Bolt tie, type HMSBolt tie HMS with countersunk cone head for direct mounting without additional anchors. Suit-able for use in concrete and different types of masonry.

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Building Connections

OBO Bettermann Holding GmbH & Co. KGP.O. Box 112058694 MendenGERMANY

Customer ServiceTel.: +49 (0)23 73 89 - 17 00Fax: +49 (0)23 73 89 - 12 [email protected]

www.obo-bettermann.com

planning aids industrial installations

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